English words: radiesthesist to radiogermanium

300 English words, part 4 of 97 of the words starting with R, A to Z. 7 have a page of their own.

English words radiesthesist to radiogermanium

radiesthesist noun /ˌreɪdɪəsˈθiːzɪst/: One who uses the dowser or divining rod, dowser
radiesthetic adjective: Relating to radiesthesia
radif noun: The word which must end both lines of the first couplet and the second line of all the following couplets in a Persian, Turkic or Urdu ghazal.
radiferous adjective /ɹeɪˈdɪf(ə)ɹəs/: containing radium (or other material used for radiotherapy)
Radigan proper noun: A surname.
Radimich noun: A member of an East Slavic tribe of the last several centuries of the 1st millennium, inhabiting upper east parts of the Dnieper down the Sozh and its...
Radimichi noun: The Radimich people.
Radimichian noun: Synonym of Radimich.
Radin proper noun: A surname.
radio noun, prefix, verb /ˈɹeɪ.diˌəʊ/: The technology that allows for the transmission of sound or other signals by modulation of electromagnetic waves.
radio-active adjective: Dated spelling of radioactive.
radio-activity noun: Dated form of radioactivity.
radio ahead verb: To make make contact by radio at a destination before arriving there to let people there know one is coming and to make suitable arrangements.
radio alarm noun: A burglar alarm or fire alarm that transmits a warning radio signal when activated
radio alarm clock noun: A compact device that combines an alarm clock with a radio receiver, allowing the radio to activate at a preset time to wake the user with a broadcast...
radio alphabet noun: Synonym of spelling alphabet.
radio altimeter noun: An altimeter that uses a narrow radio or radar beam directed at the ground
radio amateur noun: A licensed person who practises radiocommunication on specially designated frequency bands as a hobby.
radio amplifier noun: Alternative form of radioamplifier.
radio astronomer noun: A person who studies radio astronomy.
radio astronomical adjective: Of or relating to radio astronomy.
radio astronomy noun: The branch of astronomy which studies celestial bodies and occurrences at radio frequencies by means of radio telescopes.
radio band noun: Any specific range of contiguous radio frequencies set aside for a particular type of communication or service.
radio beacon noun: A beacon that emits radio wave signals to guide ships or aircraft or to indicate the position of a ship, aircraft, or other object, person, or vehicle.
radio-bright adjective: That emits significant amounts of radio waves; radio-luminous
radio broadcast noun: Alternative form of radiobroadcast.
radio burst noun: A brief emission of intense radio waves from a star etc.
radio button noun: Any of a line of preset buttons on a car radio used to select the station to be listened to; pressing one releases the others.
radio car noun: Synonym of police car.
radio cassette noun: A radio cassette player or radio cassette recorder
radio cassette player noun: A combination radio and cassette player.
radio cassette recorder noun: A combination radio and cassette recorder.
radio city noun: Synonym of Radio Row.
radio clock noun: A clock that is synchronized to a remote time standard by means of radio signals.
radio collar noun: A radio transmitter, fastened to a wild animal, (usually around the neck) so that the animal's movements may be tracked.
radio-collared adjective: Fitted with a radio collar
radio compass noun: An early form of radio direction finder that used commercial radio stations.
radio control noun: The use of radio signals to remotely control a device.
radio-controlled adjective: Controlled remotely using radio signals.
radio-controlled car noun: a model car controlled by radio waves from a battery-powered remote control unit.
radio'd verb: Uncommon spelling of radioed.
radio direction finder noun: A navigational aid to aircraft that provides a bearing to a radio beacon.
radio drama noun /ˈɹeɪdiˌəʊ dɹɑːmə/: A dramatized, purely acoustic performance, broadcast on radio or published on audio media, such as tape or CD.
radio edit noun: A modified version of a song, typically truncated or censored, intended to make it more suitable for airplay.
radio energy noun: The energy transmitted by radio-frequency electromagnetic radiation
radio fix noun: The location of a radio transmitter by taking bearings from two receivers.
radio format noun: The overall content broadcast on a radio station, targeted at a more or less specific audience according to a certain type of programming.
radio frequency adjective, noun: That part of the electromagnetic spectrum, between about 3 kHz and 300 MHz, within which radio waves are transmitted.
radio-frequency identification noun: The storage and retrieval of data using tags attached to individual packages, animals or people; the tags contain an integrated circuit to store and process...
radio frequency integrated circuit noun: An integrated circuit containing analog circuitry operating at frequencies in and above the ultrahigh frequency band.
radio-friendly adjective: Suitable for play on mainstream radio; appealing to popular taste, free from profanity, etc.
radio galaxy noun: Type of galaxy that is very luminous at radio wavelengths.
radio halo noun: A diffuse region of material, surrounding a galaxy or a pulsar, that emits radio waves.
radio ham noun: Synonym of radio amateur
radio interferometer noun: A radio telescope that has two or more separated receiving antennas in order to measure angular distances as small as one second of arc
radio interferometry noun: Interferometry using a radio interferometer
radio-isotope noun: Dated form of radioisotope.
radio jet noun: Either of a pair of intense beams of radio waves emitted by a microquasar or similar object
radio jock noun: A radio jockey
radio jockey noun: A disk jockey who hosts a radio talk show.
radio knife noun: A surgical instrument that uses a high-frequency electric arc to cut through or cut away tissue and at the same time sterilize the edges of the wound and...
radio-loud adjective: Alternative form of radioloud.
radio-luminous adjective: That emits significant amounts of radio waves; radio-bright.
radio mix noun: Synonym of radio edit.
radio modem noun: A wireless modem
radio monitoring noun: The systematic listening to, and reporting of, foreign radio transmissions in order to gather intelligence.
radio navigation noun: Alternative form of radionavigation.
radio nebula noun: Any nebula that emits radio waves
radio-nucleide noun: Dated form of radionuclide.
radio-nuclide noun: Dated form of radionuclide.
radio officer noun: The person, on board ship, who sends and receives radio messages
radio-opaque adjective: Alternative form of radiopaque.
radio operator noun: A person who, often as employment, sends and receives radio messages.
radio pill noun: Alternative form of radiopill.
radio play noun: Synonym of radio drama.
radio-quiet adjective: Alternative form of radioquiet.
radio relay noun: An intermediate radio station used to relay messages between stations that cannot communicate directly.
radio rental adjective: Mental; crazy; insane.
radio row noun: A city district where radio, television, broadcasting, and electronics may be purchased and repaired, and in which shops are concentrated.
radio set noun: An electronic device designed to receive, demodulate, and amplify radio signals, converting them into audio, such as music or voice.
radio shack noun: A room for hosting radio equipment.
radio signal noun: A signal, which can vary in strength due to various factors, transmitted and received by radio by means of radio waves.
radio silence noun /ˈɹeɪ.di.oʊ ˌsaɪ.ləns/: A status maintained where all fixed or mobile radio stations in an area stop transmitting (sometimes limited to certain frequency bands).
radio silent adjective: In a state of radio silence.
radio song noun: A song played on music radio stations, or intended for widespread play on radio stations.
radio sounding noun: Investigation of the upper atmosphere by use of a radiosonde.
radio source noun: Any astronomical object that emits radio waves.
radio-spectrograph noun: Alternative form of radiospectrograph.
radio star noun: A celebrity famous for appearances in radio broadcasts.
radio station noun /ˈɹeɪ.di.oʊ ˌsteɪ.ʃən/: An installation of a radio transmitter, and possibly a receiver, for the purpose of broadcasting or communication.
radio tag noun, verb: A small radio transmitter attached to an object (especially to an animal) in order to track its location.
radio-tagged adjective, verb: Radiolabelled.
radio tagging noun: The use of radio tags to track the location of objects (especially of animals).
radio telegraphy noun: The transmission of Morse code (etc) using radio
radio telemetry noun: Any form of telemetry that uses radio waves to transmit the data.
radio telephone noun: Alternative form of radiotelephone.
radio telephony noun: The transmission of speech using modulated radio waves
radio telescope noun: A device for observing astronomical sources of radio waves, normally having one or more large parabolic dishes.
radio tower noun: A tower or mast containing one or more antennas to transmit radio signals
radio town noun: Alternative form of Radio Town: synonym of Radio Row.
radio tracking noun: The continuous monitoring of the position and range of a remote object using radio
radio transmitter noun: transmitter (electronic device)
radio wave noun: Electromagnetic radiation having a wavelength between about .5 centimeters and 30,000 meters; used for the broadcasting of radio and television signals.
radioablation noun: ablation (of cancer tissue) by means of radiofrequency radiation
radioacoustics noun: The study of the acoustics of sounds as carried and reproduced by radio
radioactinide noun: Any radioactive isotope of an actinide
radioactinium noun: The radioactive isotope of actinium, 22789Ac, having a half-life of 21.7 years
radioactivate verb: To make something radioactive.
radioactivating adjective, noun, verb: The act of making something radioactive; radioactivation
radioactivation noun: The conversion of something into a radioactive form.
radioactive adjective, noun /ˌɹeɪdiəʊˈaktɪv/: Exhibiting radioactivity.
radioactive dating noun: The process of determining the age of a material by estimating the amount of radioactive decay of one or more radioisotopes present in the material when it...
radioactive decay noun: Any of several processes by which unstable nuclei emit subatomic particles and/or ionizing radiation and disintegrate into one or more other nuclei.
radioactive disintegration noun: Radioactive decay.
radioactive equilibrium noun: Synonym of secular equilibrium.
radioactive fallout noun: Synonym of nuclear fallout.
radioactive tracer noun: A radioactive isotope which, when injected into a chemically similar substance, or artificially attached to a biological or physical system, can be traced...
radioactive waste noun: Waste containing radioactive nuclides.
radioactively adverb: Using a radioactive substance
radioactivity noun /ˌreɪdɪəʊakˈtɪvɪti/: Spontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus.
radioadaptation noun: adaptation to ionizing radiation
radioadaptative adjective: relating to radioadaptation
radioadaptive adjective: Relating to the effect of small doses of radiation on cells that protect them from later, larger doses
radioaerosol noun: An aerosol containing a radioisotope (typically technetium-99m) and a chelating agent
radioallergosorbent adjective: Of or relating to a blood test for identifying allergies by radioimmunoassay.
radioaluminium noun: radioactive aluminium (especially when used as a tracer)
radioaluminum noun: Alternative form of radioaluminium.
radioamplifier noun: A type of electronic amplifier that converts a low-power radio-frequency signal into a higher-power signal, typically as the final stage of a radio...
radioanalyse verb: To carry out a radioanalysis
radioanalysis noun: radiochemical analysis
radioanalytic adjective: Alternative form of radioanalytical.
radioanalytical adjective: Of or pertaining to radioanalysis
radioantagonist noun: An antagonist labelled with a radioisotope
radioantimony noun: radioactive antimony (especially when used as a tracer)
radioargon noun: radioactive argon
radioarsenic noun: radioactive arsenic (especially when used as a tracer)
radioassay noun, verb: An assay of an ore or some other radioactive sample to determine the intensity of its radiation.
radioastronomer noun: One who carries out radio astronomy.
radioastronomical adjective: Alternative spelling of radio astronomical.
radioastronomy noun: Alternative spelling of radio astronomy.
radioattenuated adjective: attenuated by means of radiation
radioautogram noun: Synonym of autoradiograph.
radioautograph noun: Synonym of autoradiograph.
radioautographed adjective: Produced by radioautography
radioautographic adjective: Of or pertaining to radioautography.
radioautography noun: Synonym of autoradiography.
radiobarium noun /ˌɹeɪ.di.əʊˈbɛəɹi.əm/: radioactive barium
radiobe noun /ˈɹeɪdioʊb/: A peculiar formation, possibly a crystal, formed in gelatin submitted to the action of radium, once thought to be a transitional form between a crystal and...
radiobeacon noun: Alternative form of radio beacon.
radiobenzene noun: radioactive benzene (labelled with radioactive carbon)
radioberyllium noun: radioactive beryllium
radiobicipital adjective: Of or pertaining to the radius and the biceps.
radiobinding noun: The binding of radioisotopes (to a substrate)
radiobioassay noun: The analysis of radioactive material in the body or excreta
radiobiologic adjective: Synonym of radiobiological.
radiobiological adjective: Of or pertaining to radiobiology
radiobiologically adverb: By means of, or in terms of, radiobiology.
radiobiologist noun: One who studies or carries out radiobiology.
radiobiology noun: The study of the effects of ionizing radiation on living organisms.
radiobiophysics noun: The biophysics of radiation
radiobismuth noun: Any radioactive isotope of bismuth, especially when used in metabolic studies
radioboron noun: radioactive boron
radiobroadcast noun, verb: To broadcast by radio.
radiobroadcaster noun: A broadcaster via radio.
radiobromine noun: radioactive bromine
radiocadmium noun: radioactive cadmium
radiocaesium noun: radioactive caesium
radiocalcium noun: radioactive calcium (especially when used as a tracer)
radiocapitate adjective: Relating to the radius and the capitate bone.
radiocapitellar adjective: relating to the radius and the capitellum
radiocarbide noun: Any radioactive carbide, but especially one used to prepare radioactive methane used as a tracer
radiocarbon noun: A radioactive isotope of carbon, especially 146C.
radiocarbon dating noun: A method of estimating the age of an artifact or biological vestige based on the relative amounts of the different isotopes of carbon present in a sample.
radiocarbonic adjective: Relating to, or dated using radiocarbon
radiocardiogram noun: An X-ray recording of the progress of radioactive material injected into the chambers of the heart.
radiocardiography noun: The recording and interpretation of radiocardiograms
radiocarpal adjective: Of or relating to the radius and carpus.
radiocassette noun: Alternative form of radio cassette.
radiocast noun, verb: A radio broadcast.
radiocaster noun: A radio broadcaster.
radiocautery noun: cautery by means of radiofrequency radiation
radiocephalic adjective: Relating to the radial artery and the cephalic vein.
radiocerium noun: radioactive cerium
radiocesium noun: radioactive cesium
radiochemical adjective, noun: Of or pertaining to radiochemistry
radiochemically adverb: By means of radiochemistry
radiochemist noun: A chemist who specializes in radiochemistry
radiochemistry noun: The chemistry of radioactive substances.
radiochemoresistance noun: Synonym of chemoradioresistance.
radiochemoresistant adjective: Synonym of chemoradioresistant.
radiochemosensitization noun: Synonym of chemosensitization.
radiochemotherapeutic adjective: Relating to combined radiochemotherapy
radiochemotherapy noun: chemoradiotherapy
radiochlorine noun: radioactive chlorine (especially when used as a tracer)
radiochromatogram noun: A recording made by means of radiochromatography.
radiochromatograph noun: Any chromatograph in which the separated components are detected by their radioactivity.
radiochromatography noun: Any form of chromatography in which the separated zones are detected by their radioactivity
radiochromatoscan noun: An image produced by a radiochromatoscanner
radiochromatoscanner noun: An instrument that scans a chromatogram of radiolabelled compounds
radiochromic adjective: That changes colour on exposure to ionizing radiation
radiochromium noun: radioactive chromium
radiochronologic adjective: Relating to, or employing, radiochronology
radiochronological adjective: Relating to radiochronology
radiochronology noun: A technique in which the absolute age of an artefact is determined by measuring the ratios of specific radioactive isotopes
radiocinematograph noun: An X-ray machine with a camera, able to record moving pictures of the internal organs.
radiocinematographic adjective: Relating to radiocinematography.
radiocinematography noun: The use of the radiocinematograph.
radioclast noun: An electronic device that was supposed to cure disease, operating based on tables of frequencies.
radiocobalt noun: Radioactive cobalt (especially when used as a tracer).
radiocollar noun: A collar, fitted with a small radio transmitter, that allows the wearer to be tracked
radiocollared adjective, verb: Fitted with a radiocollar
radiocollaring noun: The fitting and use of a radiocollar
radiocolloid noun: Any colloid one or more of whose components is radioactive
radiocommunication noun: Any means of communication using radio or other electromagnetic waves
radiocompetitive adjective: Describing the use of radioimmunoassay with two (or more) competing antibodies
radiocomplex noun: A complex containing a radiotracer
radiocomplexation noun: The formation of a radiocomplex
radioconcentration noun: concentration of a radioisotope
radioconcentric adjective: radiating from the centre
radioconduction noun: An increase in electric conduction induced by radio waves, exploited in the coherer.
radioconductor noun: A substance or device that has its conductivity altered in some way by electric waves, such as a coherer
radioconjugate noun: A biochemical or immunological conjugate that has a radioisotope marker
radioconjugated adjective: conjugated with a radioisotope
radiocontaminate verb: To contaminate with radioactive material or with radiation.
radiocontaminated adjective: radioactively contaminated
radiocontamination noun: radioactive or radiological contamination
radiocontrast adjective: Designating any medical contrast medium used to improve the visibility of internal bodily structures in X-ray imaging techniques such as computed tomography...
radiocopper noun: radioactive copper
radiocracy noun: An organization or system of government continuously listening to ideology or instructions from the leader on the radio.
radiocrystallography noun: Synonym of X-ray crystallography.
radiocurability noun: The condition of being radiocurable
radiocurable adjective: curable by means of radiotherapy
radiocyath noun: Any of the class †Radiocyatha of extinct sponge-like animals that lived during the early to mid-Cambrian period.
radiocystitis noun: A form of cystitis caused by ionising radiation (typically by radiotherapy)
radiodating noun: Determining the age of artefacts by means of radiometry.
radiodecay noun: radioactive decay
radiodefluorination noun: The removal of radiofluorine
radiodeltoid adjective: Relating to the radius and the deltoid muscle
radiodense adjective: radiopaque
radiodensitometric adjective: Relating to radiodensitometry
radiodensitometry noun: densitometry using a radioisotope
radiodensity noun: The relative transparency of a material to X-rays and other radiation.
radiodermatitis noun: dermatitis caused by ionizing radiation
radiodetection noun: The detection of underground electric cables (via the radio waves produced by alternating current)
radiodetector noun: A hand-held device that is used to detect underground cables or pipes, by means of radiodetection
radiodetermination noun: Determination of the position, velocity, or other characteristics of an object by means of radio waves
radiodiagnosis noun: diagnosis by means of X-rays or radiochemical tracers
radiodiagnostics noun: Diagnostics by means of X-rays or radiochemical tracers.
radiodiffusion noun: The act of broadcasting by radio; transmission.
radiodont noun: A member of the Radiodonta order of Cambrian arthropods
radiodontia noun: The radiography of teeth, gums, jaws etc.
radiodontic adjective: Relating to dental X-rays.
radiodontist noun: One who takes dental X-rays.
radiodosimetry noun: radiation dosimetry
radiodrome noun: A pursuit curve, in which the thing being pursued is moving at constant velocity.
radiodynamic adjective: Of or relating to radiodynamics.
radiodynamics noun: The remote control of mechanical devices by means of radio signals.
radiodysprosium noun: radioactive dysprosium
radioecologic adjective: Alternative form of radioecological.
radioecological adjective: Of or pertaining to radioecology.
radioecologically adverb: In terms of radioecology.
radioecologist noun: One who studies radioecology.
radioecology noun: the study of the fate and effects of radioactive materials in the environment
radioefflux noun: efflux of material from cells as a result of radiotherapy or other radiation
radioelectric adjective: Of or pertaining to the transmission of power via electromagnetic waves
radioelectricity noun: All the phenomena related to electromagnetic waves
radioelectrochemical adjective: radiochemical and electrochemical
radioelectronic adjective: Employing or relating to radioelectronics.
radioelectronics noun: The practical use of electromagnetic radiation, including radiocommunication, radionavigation, telemechanics, radar, sonar, etc.
radioelement noun: Any element whose currently known isotopes are all radioactive.
radioembolic adjective: Relating to radioembolism
radioembolisation noun: Alternative form of radioembolization.
radioembolism noun: A radiotherapy in which radioactive nanoparticles are injected into an artery and travel to an organ (typically the liver) where they settle
radioembolization noun: A form of internal radiotherapy in which small radioactive particles are surgically implanted
radioemitter noun: Any device that emits radio waves.
radioenhancement noun: The enhancement of radiotherapeutic efficacy
radioentomology noun: The use of radiology in entomology
radioenzymatic adjective: Describing any investigation into an enzyme by the use of a radioactive substrate.
radioerbium noun: radioactive erbium
radioethanol noun: radioactive ethanol (labelled with radioactive carbon)
radioeuropium noun: radioactive europium
radioflash noun: electromagnetic pulse
radiofluoride noun: fluoride labelled with radiofluorine
radiofluorinate verb: To fluorinate using a radiofluorine compound
radiofluorination noun: fluorination using radiofluorine
radiofluorine noun: radioactive fluorine
radiofrequency adjective, noun: Alternative form of radio-frequency.
radiofrequent adjective: Relating to radio frequency
radiogadolinium noun: radioactive gadolinium
radiogalaxy noun: Alternative spelling of radio galaxy.
radiogallium noun: radioactive gallium (especially when used as a tracer)
radiogenesis noun: The production of nuclides by radioactive decay.
radiogenetics noun: The study of the genetic effects of radiation.
radiogenic adjective: Of, pertaining to, or caused by radioactivity.
radiogenically adverb: By radiogenesis.
radiogenome noun: The genome of genes affected by radiation
radiogenomic adjective: Relating to radiogenomics
radiogenomics noun: The study of the effects of radiation on genetic variation
radiogeology noun: The study of the distribution of radioactive elements in the Earth's crust.
radiogermanium noun: radioactive germanium

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0): each word's first meaning. A word with a page of its own links to it; for the rest, this line is PlainSpell's entry. Total under R: 28,843 words, in 97 parts.