English Words: R

21,470 words · Page 20 of 430

radionecrosisnoun

Any necrosis caused by exposure to ionizing radiation.

radionecroticadj

Of or pertaining to radionecrosis.

radioneonnoun

radioactive neon

radioneuritisnoun

neuritis caused by exposure to ionizing radiation

radionicadj

Of or pertaining to radionics.

radionickelnoun

radioactive nickel

radionicsnoun

Any of several techniques supposed to detect and modulate "life forces" and to provide healing using various electric black boxes.

radioniobiumnoun

radioactive niobium

radionitrogennoun

radioactive nitrogen (especially when used as a tracer)

radionovelanoun

A kind of Latin American radio soap opera, superseded by the telenovela.

radionuclearadj

Relating to a radionuclide

radionucleidenoun

Dated form of radionuclide.

radionucleotidenoun

Any nucleotide labelled with a radioactive tracer.

radionuclidenoun

a radioactive nuclide

radionuclidicadj

Of or pertaining to radionuclides

radiooncologicaladj

Relating to radiooncology

radiooncologynoun

The use of radiotherapy in oncology

radioopacitynoun

Alternative form of radiopacity.

radioosmiumnoun

radioactive osmium

radiooxygennoun

radioactive oxygen

radiopacificationnoun

The process of making something radiopaque.

radiopacifyverb

To make radiopaque.

radiopacitynoun

The state or degree of being opaque to X-rays.

radiopagernoun

A pager (telecommunication device) that operates by means of radio signals.

radiopagingnoun

The use of radiopagers.

radiopalladiumnoun

radioactive palladium

radiopalmaradj

Relating to the radius and palm.

radiopanspermianoun

The propagation of life through space by way of scattering via radiation pressure of stars, or being launched into space from the source habitats via electrical and magnetic currents in the exospheres of those habitable worlds.

radiopaqueadj

Impenetrable to X-rays and other radiation.

radioparticlenoun

a particle of a radioactive material, typically of a colloidal radiotherapy

radiopasteurizationnoun

pasteurization by exposure to ionizing radiation

radiopasteurizeverb

To pasteurize by means of ionizing radiation

radiopeptidenoun

A radiolabelled peptide

radiopharenoun

radio beacon

radiopharmaceuticalnoun

Any radioactive substance used as a pharmaceutical.

radiopharmaceuticallyadv

In terms of or by means of radiopharmaceuticals.

radiopharmacistnoun

One who works in radiopharmacy.

radiopharmacologynoun

The science of the manufacture and use of radiopharmaceuticals

radiopharmacynoun

The administration of radiopharmaceuticals.

radiophenotypenoun

A phenotype caused by radiation

radiophenotypicadj

Relating to radiophenotypes

radiophilenoun

Any radiophilic organism

radiophilicadj

That thrives in the presence of ionizing radiation

radiophobianoun

The fear of radiation.

radiophonenoun

A photophone.

radiophonicadj

Describing sound effects created to accompany radio broadcasts as background music.

radiophonicallyadv

In a radiophonic manner.

radiophosphatenoun

phosphate containing radiophosphorus

radiophosphorusnoun

radioactive phosphorus (especially when used as a tracer)

radiophosphorylatedadj

phosphorylated by means of a compound of radiophosphorus

Spelling & Dictionary Insight

The English alphabetical index for the letter R contains 21,470 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 430 pages, and you are currently viewing page 20. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.

On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.

For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "R" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.