English words: acronyctous to actinodromous

300 English words, part 19 of 158 of the words starting with A, A to Z. 21 have a page of their own.

English words acronyctous to actinodromous

acronyctous adjective: acronycal
acronym noun, verb /ˈækɹənɪm/: Generally such abbreviations, including those pronounced as individual letters (initialisms such as "TNT").
acronymania noun: The enthusiastic creation and use of acronyms.
acronymic adjective: Pertaining to the use of acronyms.
acronymical adjective: Alternative form of acronymic.
acronymically adverb /ˈækɹəˈnɪmɪk(ə)li/: In an acronymic way; in such a way as to form an acronym.
acronyming noun, verb: The action of turning into an acronym.
acronymise verb: Non-Oxford British English standard spelling of acronymize.
acronymist noun: Someone who uses, or makes up, acronyms.
acronymitis noun: The excessive use of acronyms.
acronymization noun: The act, process, or result of turning a phrase into an acronym.
acronymize verb: To turn a phrase into an acronym.
acronymophilia noun: The abnormal liking or tendency for the use of acronyms.
acronymous adjective: Pertaining to the use of acronyms.
acronymously adverb: In an acronymous manner; as an acronym.
acronymphomania noun: acronymania
acronymy noun: The formation of words from the initial components of words in a phrase
acrook adjective, adverb /əˈkɹʊk/: In an oblique or crooked direction.
acroosteolysis noun: The resorption of distal bony phalanges.
acropachy noun: A medical condition characterized by subperiosteal formation of new bone, most commonly manifesting as clubbing of the fingers and toes with soft tissue...
acropachyderma noun: A thickening of the skin of the head and limbs together with deformity of the bones of the limbs
acroparaesthesia noun: Alternative form of acroparesthesia.
acroparalysis noun: Paralysis of the extremities.
acroparesthesia noun: severe pain in the extremities
acropathology noun: The study of diseases of the limbs or the extremities.
acropathy noun: Any disease specific to the extremities.
acropectoral syndrome noun: An autosomal-dominant skeletal dysplasia syndrome affecting the hands, feet, sternum, and lumbosacral spine.
acropetal adjective: That develops, matures or opens from the base towards the apex in sequence.
acropetally adverb: In an acropetal manner.
acrophase noun: The time period in a cycle during which the cycle crests or peaks, especially the upper part of a sine wave fitted to a measurement of a circadian pattern...
acrophile noun: A person who inhabits mountains or alpine regions.
acrophilia noun: A love of heights.
acrophilic adjective: That inhabits or prefers mountains or alpine regions
acrophobe noun /ˈækɹəˌfoʊb/: A person who suffers from acrophobia, a fear of heights.
acrophobia noun: phobia or strong fear of being high above ground level
acrophobiac noun: Synonym of acrophobe.
acrophobic adjective, noun: Of or pertaining to or suffering from acrophobia.
acrophone noun: The first sound of a word, or a glyph used to represent the first sound of the word it represents
acrophonetic adjective: Of or pertaining to acrophony.
acrophonic adjective: Conforming to acrophony.
acrophonical adjective: Relating to or having the property of acrophony.
acrophonically adverb: In an acrophonic way.
acrophony noun /əˈkɹɒfəni/: The naming of letters in an alphabetic writing system using words whose initial sounds are represented by the respective letters.
acrophore noun: A stem or stalk that is apical.
acrophyll noun: In a climbing plant, a leaf produced by the mature plant, which is physically distinct from the leaves produced by the immature plant.
acrophysalide noun: A terminal, inflated cell of a basidiome
acrophysalidic adjective: Describes tissue that consists of connective hyphae and abundant, large, terminal, inflated cells.
acrophyte noun: Any plant, such as an Alpine, that grows at a high altitude
acropigmentation noun: Abnormal pigmentation of the hands and feet.
acroplaxome noun: A structure that lies between the membranes of the acrosome and nucleus of a spermatozoon.
acropleurogenous adjective: Having spores that develop at the ends of the hyphae
acropleurogenously adverb: In an acropleurogenous manner.
acropleuron noun: The small dorsal region of the mesopleuron
acropleustophyte noun: An aquatic plant that floats near the water surface.
acropodial adjective: Relating to, or characteristic of, an acropodium.
acropodion noun: The most anterior point of the foot (in humans, the tip of either the first or the second toe) when used as an anatomical landmark.
acropodium noun: A plinth or pedestal bearing a statue.
acropolis noun /əˈkɹɒpəlɪs/: A promontory (usually fortified with a citadel) forming the hub of many Grecian cities, and around which many were built for defensive purposes before and...
acropolitan adjective /ˌækɹəˈpɒlɪtən/: Of, pertaining to, or in the style of the Athenian Acropolis; compare acropolitan.
acropomatid noun: Any member of the family Acropomatidae.
acropore noun: Any member of the genus Acropora of corals
acroporid noun: Any coral in the family Acroporidae.
acroposthion noun /ækɹə(ʊ)ˈpɒsθɪən/: Alternative spelling of akroposthion.
acroposthitis noun: Inflammation of the akroposthion.
acropsin noun: Any of a group of opsins found in corals of the genus Acropora.
acropustulosis noun: acrodermatitis with pustular involvement
acrorhagus noun: Any of a set of marginal tubercles of sea anemones containing specialized nematocysts
acroscleroderma noun: Synonym of sclerodactyly.
acrosclerosis noun: sclerosis of the fingers
acroscopic adjective: Toward or facing the apex.
acrose noun: A racemic form of fructose
acrosin noun: A proteolytic enzyme, found in the acrosome of spermatozoa, that enables penetration of the egg.
acrosine noun: Synonym of acrosin.
acroski noun: Ski ballet.
acrosomal adjective: Of or pertaining to acrosomes
acrosome noun: A structure forming the end of the head of a spermatozoon.
acrosomeless adjective: Having no acrosomes
acrosomic adjective: Synonym of acrosomal.
acrosomin noun: A lipoglycoprotein complex present in the acrosome
acrospire noun, verb: The sprout at the end of a seed when it begins to germinate.
acrospiroma noun: A tumor of the distal portion of a sweat gland.
acrospore noun /ˈækrəˌspɔːr/: A fungal spore produced at the tip of a specialized hypha.
acrosporous adjective: having acrospores
across adverb, noun, preposition /əˈkɹɒs/: To, toward, or from the far side of (something that lies between two points of interest).
across country prepositional phrase: From one side of the country to the other.
across from preposition: facing, opposite.
across lots prepositional phrase: Alternative form of cross lots (“via a shortcut”).
across the board adjective, prepositional phrase: Pertaining to all categories or things.
across the ditch prepositional phrase: On or to the other side of the Tasman Sea.
across the line prepositional phrase: Describing the action of a batsman in moving the bat in a direction lateral to that of the incoming ball
across the pond prepositional phrase /əˌkɹɒs ðə ˈpɒnd/: On or to the other side of the Atlantic Ocean.
across the way phrase: Nearby on the opposite side of a street or area.
across variable noun: A variable whose value is determined by measuring a difference of the values at two extreme points of an element; thus voltage is a difference in two levels...
acrosst adverb, preposition: across
acrosswise adverb: In a way that goes across; crosswise.
acrost preposition: Alternative form of across.
acrostatic adjective: In Proto-Indo-European athematic nominals, having a specific pattern of ablaut in which the accent is placed on the root syllable in all cases.
acrostealgia noun: An apophysitis of the bones of the extremities
acrosternite noun: The precostal lip of the sternum of a segment of an arthropod
acrostic adjective, noun /əˈkɹɒstɪk/: A poem or other text in which certain letters, often the first in each line, spell out a name or message.
acrostical adjective: Like an acrostic.
acrostically adverb: In the manner of an acrostic.
acrostich noun: Alternative form of acrostic.
acrostichaceous adjective: Belonging to the family Acrostichaceae.
acrostichal adjective: Situated on the mesothorax of some dipteran flies
acrostichic adjective: Being or relating to an acrostic.
acrostichoid adjective: Whose sori densely cover the underside of the frond like a felt, without visible gaps between them.
acrosticism noun: Acrostic arrangement or character.
acrostomy noun: A morphotype characterized by bilateral symmetry and a mouth located at one pole of the body.
acrosyndesis noun: The pairing of homologous telomeres during meiosis
acrosyringial adjective: Relating to the acrosyringium.
acrosyringium noun: An intraepidermal spiral duct in the eccrine gland.
acrotarsial adjective: Relating to the acrotarsium
acrotarsium noun: The instep of the foot (front of the tarsus)
acroteleutic noun: The end of a verse or psalm, or something added to it, to be sung by the people by way of a response.
acrotelm noun: The top layer of a peat bog, above the catotelm, where there are living plants.
acroter noun /ˈækɹətə(ɹ)/: An acroterium.
acrotergite noun: The precostal sector of a tergite
acroterial adjective: Pertaining to an acroterium.
acroteric adjective: Relating to the extremities of the limbs or to the tip of the nose
acroterion noun: Alternative form of acroterium.
acroterium noun /ˌækɹəˈtɪəɹi.əm/: One of the small pedestals, for statues or other ornaments, placed on the apex and at the basal angles of a pediment, or upon the gables in Gothic architecture.
acrothoracican noun: Any barnacle of the superorder Acrothoracica
acrotism noun: A lack or defect of the pulse.
acrotomophile noun: A person with a paraphilic attraction to amputees (acrotomophilia).
acrotomophilia noun: A paraphilia involving sexual attraction toward amputees.
acrotomophilic adjective: Of, pertaining to, or characterized by acrotomophilia.
acrotonous adjective: Of an orchid: having the tissue of the pollen sac prolonged to the upper end of the anther.
acrotrichial adjective: Relating to the acrotrichium
acrotrichium noun: The distal part of the infundibular epidermis that traverses the surface epidermis.
acrotrophic adjective: Having nutritive cells at the top of the follicular tube
acrotrophodynia noun: A discomfort and functional impairment in the hands or feet due to an altered nerve and tissue damage, often linked to cold exposure.
acrow noun: Ellipsis of acrow prop.
acrow prop noun: An adjustable-height steel support used in the construction industry, typically to temporarily support structures while work is carried out.
acroyl noun: The univalent radical CH₂=CH-CO- derived from acrylic acid
Acroyoga noun: A physical practice that combines yoga and acrobatics.
ACRR noun: adjacent-channel rejection ratio; the resulting measurement of comparing signal strength with a similar signal on another frequency if they are on adjacent...
acryl noun: The univalent radical derived from acrylic acid :- CH₂=CH-CO-
acrylaldehyde noun: The unsaturated aldehyde acrolein
acrylamidation noun: reaction with an acrylamide
acrylamide noun /əˈkɹɪləmaɪd/: The amide of acrylic acid, CH₂=CH.CONH₂; used in the manufacture of polyacrylamides.
acrylate noun /ˈækɹɪleɪt/: Any salt or ester of acrylic acid.
acrylated adjective: Modified by reaction with acrylic acid
acrylation noun: Any reaction involving the addition of an acrylate group
acrylic adjective, noun /əˈkɹɪl.ɪk/: Derived from acrylic acid or acrylonitrile.
acrylic acid noun: A colorless liquid unsaturated organic acid, CH₂=CHCOOH; used as a monomer in the production of acrylic resins; forms acrylate esters by combination with...
acrylic fiber noun: Synthetic fibers made from a polymer.
acrylic fibre noun: UK form of acrylic fiber.
acrylic resin noun: Any of many thermoplastic or thermosetting polymers or copolymers of acrylic acid, methacrylic acid, esters of these acids, or acrylonitrile; used in paint...
acrylodan noun: The amine 6-acryloyl-2-dimethylaminonaphthalene
acrylol noun: The univalent radical CH₂=CH-CO- derived from acrylic acid
acrylonitrile noun: A toxic colourless liquid organic compound, CH₂=CH.CN, synthesized from propylene and ammonia; used as a monomer in the production of acrylic resins and...
acrylonitrile butadiene styrene noun: An amorphous thermoplastic polymer made by polymerizing styrene and acrylonitrile in the presence of polybutadiene.
acrylonitrilebutadienestyrene noun: Alternative form of acrylonitrile butadiene styrene.
acrylonitrilic adjective: Containing, or derived from acrylonitrile
acryloxy noun: The radical CH₂=CH-CO-O- derived from acrylic acid
acryloyl noun: The univalent radical CH₂=CH-CO- derived from acrylic acid; 2-propenoyl
acryloyldimethyltaurate noun: The acryloyl ester of the N-dimethyl derivative of taurine; it is used in some cosmetics
acrylyl noun: The univalent radical CH₂=CHCO− derived from acrylic acid
acrystalliferous adjective: Not crystalliferous
acs noun, verb: Initialism of adjacent channel selectivity.
act adjective, adverb, noun, verb /ækt/: An instance of a certain standardized college admissions test in the United States, originally called the American College Test.
act a fool verb: to play the fool.
act chicken verb: To behave timidly, reluctantly, or afraid, especially when confronted with something new or unfamiliar
act curtain noun: Synonym of front curtain.
act of adjournal noun: A set of rules of court governing criminal procedure made as secondary legislation by the High Court of Justiciary.
act of Congress noun: A statute enacted by the United States Congress or Congress of the Philippines.
act of darkness noun: sexual intercourse
act of faith noun: An action that demonstrates one's religious faith.
Act of God noun: An unforeseen occurrence beyond one's control, such as a natural disaster.
act of independent significance noun: A doctrine in the law of wills under which a testator may effectively change the disposition of their property without changing the text of the will, so...
act of parliament noun: A law which has received assent (royal, presidential or gubernatorial) after having been passed by the houses (or house) of a parliament.
Act of Parliament clock noun: A large clock, once hung in inns, erroneously thought to derive from a tax on clocks.
act of sederunt noun: A set of rules of court governing civil procedure made as secondary legislation by the Court of Session.
act of war noun: An action that would justify the initiation of hostilities against the perpetrator; an action that by its nature comprises a cessation of peace.
act on verb: To act decisively on the basis of information received or deduced.
act one's age verb: To behave in a manner appropriate to one's age.
act one's age, not one's shoe size verb: Synonym of act one's age (“to behave in a mature manner; to avoid being childish”).
act out verb /ˌækt ˈaʊ̯t/: To perform something specific.
act possum verb: Synonym of play possum.
act psychology noun: A behavioral approach to psychological study with a focus on studying and inferring from actions rather than by studying through reflection or introspection.
act the fool verb: Alternative form of play the fool.
act the giddy goat verb: Synonym of act the goat.
act the goat verb: To play around in a silly manner.
act the hypocrite verb: To behave deceitfully or hypocritically; to dissemble.
act the jennet verb: To play around in a foolish or annoying manner.
act the jinnet verb: Alternative form of act the jennet.
act the maggot verb: To play around in a foolish or annoying manner.
act up verb /ækt ˈʌp/: To misbehave; to cause trouble.
act upon verb: To take action on the basis of information received or deduced.
actability noun: The condition of being actable
actable adjective: Able to be acted, as by an actor.
Actaeon noun, verb /ækˈtiːən/: A cuckold.
actaeonid noun: Any sea slug of the family Actaeonidae.
actagardin noun: Alternative form of actagardine.
actagardine noun: A particular lantibiotic, structurally related to mersacidin.
actant noun: That which acts; a source of action or activity.
actantial adjective: Relating to actants.
actantially adverb: In terms of actants.
actaplanin noun: A complex of broad-spectrum antibiotics made by Actinoplanes bacteria.
actarit noun: An anti-inflammatory drug used to treat rheumatoid arthritis.
actative adjective, noun /ˈæktətɪv/: Serving to act.
acte clair noun: The doctrine, in European law, that cases involving a law with a reasonably obvious interpretation do not need to be referred to the European Court of Justice.
acte gratuit noun /ˈækt ɡɹætˈwi/: An impulsive act lacking motive.
acted charade noun: Synonym of charade (“a single round of the game charades”).
acted out adjective, verb: Alternative spelling of acted-out.
actedron noun: The drug amphetamine.
acteme noun: A unit of behavior.
Acteon noun: Alternative spelling of Actaeon.
acteonellid noun: Any gastropod in the family Acteonellidae.
acteonid noun: Any sea snail in the family Acteonidae.
acteonoid noun: Any member of the Acteonoidea superfamily of snails.
acteoside noun: A phenylethanoid glycoside present in Byblis liniflora
acter noun /ˈæk.tə/: A play or film with a particular number of acts.
actg adjective: Abbreviation of acting (“temporarily assuming the duties or authority of another”).
ACTH noun: Initialism of adrenocorticotropic hormone.
actibelt noun: A belt that has an accelerometer built into the buckle.
actidione noun: Synonym of cycloheximide.
actifan noun /ˈæk.tɪˌfæn/: A person, particularly a fan of science fiction, involved in fanac or fan activity.
actification noun: Alternative form of activation.
actifier noun: Synonym of reactivator.
actify verb: Synonym of activate.
actigram noun: Alternative form of actogram.
actigraph noun: An accelerometer, worn by a sleeping subject, that records sleep activities.
actigraphic adjective: Relating to actigraphy.
actigraphically adverb: By means of actigraphy.
actigraphy noun: The use of the actigraph to record the movements of a sleeping subject, and analyze the subject's sleep patterns.
actimeter noun: A device that measures and records activity and rest.
actimetric adjective: Relating to the measurement of activity
actimetry noun: The measurement of people's activity / rest cycles
actimycin noun: Synonym of azithromycin.
actin noun, prefix, verb /ˈæktɪn/: A globular structural protein that polymerizes in a helical fashion to form an actin filament (or microfilament).
actinal adjective: Pertaining to the side or surface around the mouth in an animal that has radial symmetry such as a starfish.
actinally adverb: In an actinal manner.
actinarian noun: Any sea anemone of the order Actiniaria
actinase noun: A protease that hydrolyses actins
actinate noun: Any oxyanion of actinium, or salt containing such an oxyanion
actinautographic adjective: That produces a developable impression on light-sensitive material without contact
actinautography noun: The production of an actinautographic image
actinenchyma noun: Cellular tissue formed in a star-shaped manner, as seen in a cross-section of Juncus.
acting adjective, noun, verb /ˈæk.tɪŋ/: Temporarily assuming the duties or authority of another person when they are unable to do their job.
acting charades noun: Synonym of charades.
actinia noun: A sea anemone, specifically a member of the genus Actinia.
actinian noun: A sea anemone (of the order Actiniaria).
actiniarian noun /ækˌtɪniˈɛəɹi.ən/: Any sea anemone of the order Actiniaria
actiniarid noun: Alternative form of actiniarian.
actinic adjective /ækˈtɪn ɪk/: Related to radiation; used most often in reference to light, especially in the ultraviolet range.
actinic flux noun: The light available at a point in the atmosphere, especially that available to produce photochemical processes
actinic keratosis noun: A potentially precancerous skin lesion, typically on the upper portion of the head, characterized by discolored, thickened or scaly growths of keratin and...
actinically adverb: In an actinic manner.
actinidain noun: Alternative form of actinidin.
actinide noun /ˈæktɪnaɪd/: Any of the 15 radioactive elements of the periodic table from actinium to lawrencium that are positioned under the lanthanides, to which they have similar...
actinidiaceous adjective: Of or relating to the Actinidiaceae.
actinidic adjective: Of or pertaining to the actinides.
actinidic acid noun: A triterpene phytoalexin isolated from the peel of kiwifruit (Actinidia chinensis var. deliciosa).
actinidin noun: A protein-digesting enzyme present in kiwifruit. It is also an allergen.
actinidine noun: A pyridine derivative that is attractive to cats.
actinidiolide noun: A particular chemical compound that attracts cats: 4,4,7a-trimethyl-4,5-dihydrobenzofuran-2(7aH)-one.
actiniferous adjective: Containing or producing actinium
actiniform adjective: Having a radiated form; ray-shaped.
actiniid noun: Any sea anemone of the family Actiniidae
actinin noun: Any of several microfilament proteins that have a function in the attachment of actin fibres in muscle cells
actiniochrome noun: A red to violet pigment present in some Actinozoa
actinioerythrin noun: A particular carotenoid.
actiniohematin noun: A pigment (mixture of cytochromes) present in the sea anemone Actinia equina.
actinioidean noun: Any sea anemone of the superfamily Actinioidea
actiniscidian noun: Any dinoflagellate of the family Actiniscaceae.
actinism noun: That property of electromagnetic radiation that leads to the production of photochemical effects
actinistian adjective, noun: Relating to coelacanths (and related fish) of the class Actinistia.
actinium noun /ækˈtɪniəm/: A radioactive, metallic chemical element (symbol: Ac) with an atomic number of 89; found in uranium ores.
actinium emanation noun: Synonym of actinon (“the isotope radon-219”).
actinium K noun: Synonym of francium.
actinizoan noun: Alternative form of actinozoan.
actino- prefix: ray, ray-shaped
actino-uranium noun: Uranium-235.
actinobacillary adjective: Relating to actinobacilli
actinobacillosis noun: A zoonotic disease, most commonly associated with animals, caused by the Actinobacillus bacteria, and which forms radiating structures in the tissues
actinobacillotic adjective: Relating to, or causing actinobacillosis
actinobacillus noun: Any bacterium of the genus Actinobacillus.
actinobacterial adjective: Of, pertaining to, or derived from a member of the Actinobacteria.
actinobacteriophage noun: The bacteriophage of an actinobacterium
actinobacterium noun: Any member of the phylum or class Actinobacteria of bacteria.
actinobiology noun: The study of the effects of radiation upon living organisms.
actinobolism noun: Radiation; emission or projection.
actinobranch noun: An organ, in some anthozoans, that functions as a gill
actinobranchia noun: Alternative form of actinobranch.
actinoceratid noun: Any of the extinct cephalopods in the family †Actinoceratidae.
actinocerid noun: Any extinct cephalopod of the order †Actinocerida
actinoceroid noun: Any member of the Actinoceroidea superfamily of cephalopods.
actinochemical adjective: Relating to actinochemistry.
actinochemistry noun: The science of chemistry and actinism.
actinocrinite noun: A crinoid of the genus †Actinocrinites, present only as fossils.
actinocyclid noun: Any sea slug of the family Actinocyclidae
actinodaphine noun: A particular aporphine alkaloid.
actinodaphnine noun: An alkaloid isolated from various plants, including Actinodaphne hookeri, Cassytha filiformis and Litsea monopetala (syn. Litsea polyantha), and...
actinodermatitis noun: actinic dermatitis
actinodin noun: Any of a group of proteins that are essential structural components of fin rays and fin folds of zebrafish.
actinodontid noun: Synonym of eryopid.
actinodrome adjective: Alternative form of actinodromous.
actinodromous adjective: having palmate veins

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 A: 47,274 words, in 158 parts.