A nocturnal, insectivorous mammal, Proteles cristatus, of southern and eastern Africa, related to and resembling the hyena.
aaronite
aaronite
Noun
A descendant of Aaron; a Levite.
aaronson
abarambo
abatjour
abatjour
noun
A skylight or other device whose purpose is to direct light into a room.
abattoir
abattoir
noun
A place or event likened to a slaughterhouse, because of great carnage or bloodshed.
A public slaughterhouse for cattle, sheep, etc.
abbotric
abbotric
noun
(obsolete) An abbacy.
abditory
abditory
noun
(rare) A concealed location used for storage or to hide items.
abductor
abductor
noun
(anatomy) A muscle which serves to draw a part out, or from the median line of the body
One who abducts; a kidnapper.
abettors
abettors
noun
plural of abettor
abhorred
abhorred
adj
(obsolete) Horrified.
Strongly disliked: hated, despised.
verb
simple past tense and past participle of abhor
abhorrer
abhorrer
noun
(historical, sometimes capitalized) A nickname given in the early 17ᵗʰ century to signatories of addresses of a petition to reconvene parliament, addressed to Charles II.
One who abhors.
abhorson
abnormal
abnormal
adj
Not conforming to rule or system; deviating from the usual or normal type.
Of or pertaining to that which is irregular, in particular, behaviour that deviates from norms of social propriety or accepted standards of mental health.
noun
A person or object that is not normal.
aborally
aborally
adv
In an aboral way; away from the mouth.
aborning
aborning
adj
(chiefly Canada, US) While being born or produced.
adv
(chiefly Canada, US) That is in the process of being born; coming into existence; before coming to completion.
aborsive
aborsive
adj
(obsolete) abortive from the first.
aborters
aborters
noun
plural of aborter
aborting
aborting
verb
present participle of abort
abortion
abortion
noun
(biology) Arrest of development of any organ, so that it remains an imperfect formation or is absorbed.
(figuratively) A misshapen person or thing; a monstrosity.
(figuratively) Failure or abandonment of a project, promise, goal etc.
(medicine) The expulsion from the womb of a foetus or embryo before it is fully developed, with loss of the foetus; either naturally as a spontaneous abortion (now usually called a miscarriage), or deliberately as an induced abortion.
(now rare) An aborted foetus; an abortus.
The cessation of an illness or disease at a very early stage.
abortive
abortive
adj
(biology) Imperfectly formed or developed; rudimentary; sterile.
(medicine) Cutting short; acting to halt or slow the progress (of a disease).
(obsolete) Produced by abortion; born prematurely and therefore unnatural.
(obsolete) A medicine to which is attributed the property of causing abortion, abortifacient.
(obsolete) Someone or something born or brought forth prematurely; an abortion.
verb
(transitive, obsolete) To cause an abortion; to render without fruit.
abounder
abounder
noun
One who has plenty, one who abounds (in something).
abourezk
abramson
abrasion
abrasion
noun
(dentistry) The wearing away of the surface of the tooth by chewing.
(geology) The effect of mechanical erosion of rock, especially a river bed, by rock fragments scratching and scraping it.
(medicine) A superficial wound caused by scraping; an area of skin where the cells on the surface have been scraped or worn away.
(obsolete) The substance thus rubbed off; debris.
An abraded, scraped, or worn area.
The act of abrading, wearing, or rubbing off; the wearing away by friction.
abrastol
abricock
abricock
noun
(obsolete) apricot
abrocoma
abrocome
abrocome
noun
Either of the ratlike rodents that form the genus Abrocoma; rat chinchilla.
abrogate
abrogate
adj
(archaic) Abrogated; abolished.
verb
(molecular biology, transitive) To block a process or function.
(transitive) To put an end to; to do away with.
(transitive, law) To annul by an authoritative act; to abolish by the authority of the maker or her or his successor; to repeal; — applied to the repeal of laws, decrees, ordinances, the abolition of customs, etc.
abrosias
abrotine
abrotine
noun
A colorless crystalline alkaloid obtained from abrotanum, C₂₁H₂₂N₂O.
abruptio
abruptio
noun
(music) An abrupt pause or stop; an abruption.
absaroka
absaroka
Proper noun
A Siouan people from between the Platte and the Yellowstone Rivers; the Crow.
Noun
A member of this people.
absolver
absolver
noun
Agent noun of absolve; one who absolves.
absorbed
absorbed
adj
Fully occupied with one's thoughts; engrossed.
Something that has been absorbed, taken in, engulfed, imbibed, or assimilated.
verb
simple past tense and past participle of absorb
absorber
absorber
noun
(nuclear physics) A material that absorbs neutrons in a reactor.
A device which causes gas or vapor to be absorbed by a liquid.
A person who absorbs.
Something that absorbs.
acarpous
acarpous
adj
(botany) Not producing fruit; unfruitful; sterile.
accensor
accensor
noun
(Roman Catholicism) One of the functionaries who light and trim the tapers.
accentor
accentor
noun
(music, obsolete) One who sings the leading part; the director or leader.
(obsolete) The ovenbird, Seiurus aurocapilla.
Any bird of the Eurasian genus Prunella, such as the dunnock.
acceptor
acceptor
noun
(biochemistry) A transfer RNA molecule that can accept a specific amino acid
(chemistry) An atom or molecule which can accept an electron to form a chemical bond.
(computing theory) A kind of finite-state machine whose binary output indicates whether or not a received input was accepted.
(law, commerce) One who accepts a draft or a bill of exchange; a drawee after he has accepted.
(physics) A chemical acceptor atom forming a positive hole in a semiconductor
(physiology) A cluster of skin cells that respond to pain
One who accepts.
accessor
accessor
noun
(object-oriented programming) A function that retrieves a value, usually without changing any data.
Someone or something that accesses.
accorded
accorded
verb
simple past tense and past participle of accord
accorder
accorder
noun
(rare) One who accords.
accouter
accouter
verb
(transitive) To furnish with dress or equipments, especially those for military service
accoutre
accoutre
verb
(Commonwealth) Alternative form of accouter
accroach
accroach
verb
(intransitive) To encroach.
(transitive) To hook, or draw to oneself as with a hook.
(transitive) To usurp, as jurisdiction or royal prerogatives.
accutron
acerolas
acerolas
noun
plural of acerola
acervose
achatour
achatour
noun
(historical) A purveyor of provisions; a provedore. [14th–18th c.]
achordal
achordal
adj
achordate
achorion
achroite
achroite
noun
(mineralogy) A colourless form of tourmaline
achromat
achromat
noun
(optics) A lens that imparts little color; a lens that is achromatic.
achromia
achromia
noun
(medicine) Absence of pigmentation, especially in the skin or blood
achromic
achromic
adj
(sciences) Uncoloured; not pigmented; lacking in colour.
achroous
achroous
adj
Colorless; achromatic.
ackworth
acneform
acneform
adj
(pathology, especially of a rash) Resembling acne
acopyrin
acounter
acridone
acridone
noun
(organic chemistry) An tricyclic heterocyclic ketone derived from acridine; any derivative of this compound
acrimony
acrimony
noun
A sharp and bitter hatred.
acroasis
acroasis
noun
An oral discourse.
acroatic
acroatic
adj
acroamatic
acrobacy
acrobacy
noun
acrobatics
acrobats collectively
acrobats
acrobats
noun
plural of acrobat
verb
Third-person singular simple present indicative form of acrobat
acrocera
acrocyst
acrocyst
noun
A chitinous cyst of the gonophore at the top of the gonotheca in some hydroids
acrodont
acrodont
adj
Having teeth immovably united to the top of the alveolar ridge.
noun
One of a group of lizards having the teeth immovably united to the top of the alveolar ridge
acrogamy
acrogens
acrogens
noun
plural of acrogen
acrolein
acrolein
noun
(organic chemistry) A pungent, acrid, poisonous liquid aldehyde, CH₂=CH-CH=O, made by the destructive distillation of glycerol.
acrolith
acrolith
noun
(historical) An ancient Greek wooden statue furnished with a rupestral head and limbs.
acrology
acrology
noun
Synonym of acrophony
acromial
acromial
adj
Of or pertaining to the acromion.
acromion
acromion
noun
(anatomy) The outermost point of the shoulder blade.
acronomy
acronych
acronyms
acronyms
noun
plural of acronym
verb
Third-person singular simple present indicative form of acronym
acropora
acropore
acropore
noun
Any coral of the genus Acropora
acrosarc
acrosome
acrosome
noun
A structure forming the end of the head of a spermatozoon
acrostic
acrostic
adj
Of or pertaining to acrostics.
noun
A kind of word puzzle, the solution of which forms an anagram of a quotation, and their initials often form the name of its author.
A poem in Hebrew in which successive lines or verses start with consecutive letters of the alphabet.
A poem or other text in which certain letters, often the first in each line, spell out a name or message.
acrotism
acrotism
noun
(medicine) A lack or defect of the pulse.
actioner
actioner
noun
(informal) An action movie.
actorish
actorish
adj
Of, pertaining to, or characteristic of an actor or theatrical acting; like an actor.
actuator
actuator
noun
(computer hardware) The mechanism that moves the head assembly on a disk drive.
(electrical) A relay that controls the flow of electricity.
A usually electric device that causes a mechanical device (i.e., a mechanism) to be switched on or off. For example; an electric motor that opens and closes a valve.
Something that actuates something else.
acuerdos
adaptors
adaptors
noun
plural of adaptor
additory
additory
adj
(rare) Tending to add; making some addition.
addorsed
addorsed
adj
(heraldry, of animals or wings) Set back to back, facing away from each other.
verb
simple past tense and past participle of addorse
adductor
adductor
noun
(anatomy) A muscle which draws a limb or part of the body toward the middle line of the body, or closes extended parts of the body; -- opposed to abductor
adffroze
adfrozen
adjoiner
adjourns
adjourns
verb
Third-person singular simple present indicative form of adjourn
adjurors
adjurors
noun
plural of adjuror
adjustor
adjustor
noun
Alternative form of adjuster
adjutory
adjutory
adj
(obsolete) Serving to help or assist.
adoniram
adopters
adopters
noun
plural of adopter
adorable
adorable
adj
Befitting of being adored; cute or loveable.
adorably
adorably
adv
In an adorable manner.
adorally
adorally
adv
In an adoral way; near to the mouth.
adoretus
adorners
adorners
noun
plural of adorner
adorning
adorning
noun
(archaic) An adornment.
verb
present participle of adorn
adrastos
adrogate
adrogate
verb
(transitive, Ancient Rome, law, historical) To adopt (a person who is his own master).
adroiter
adroiter
adj
comparative form of adroit: more adroit
adroitly
adroitly
adv
Deftly; in an adroit manner.
In a manner exhibiting skill at handling situations, particularly difficult situations.
adrostal
adsessor
adsorbed
adsorbed
verb
simple past tense and past participle of adsorb
adulator
adulator
noun
One who lavishes excessive praises or flattery; one who adulates.
advisors
advisors
noun
plural of advisor
advisory
advisory
adj
Able to give advice.
Containing advice; advising.
aegrotat
aegrotat
noun
(Britain) An unclassified degree awarded to such a student.
(Britain, dated) A certificate indicating that a student is ill, excusing attendance at lectures and examinations and allowing courses to be passed without finishing the work.
aeluroid
aequorin
aequorin
noun
(biochemistry) A photoprotein, isolated from luminescent jellyfish and other marine organisms, composed of two distinct units: the apoprotein apoaequorin and the prosthetic group coelenterazine.
aeration
aeration
noun
By extension, a process in which other gases (such as carbon dioxide or nitrogen or argon) are circulated through or mixed with a substance (usually liquid), sometimes with the consequence of increasing the transfer of air into the same liquid at the surface due to the induced circulation.
The process by which air is circulated through or mixed with a substance such as soil or a liquid.
aerators
aerators
noun
plural of aerator
aeriform
aeriform
adj
Having a form similar to that of air.
Light, unsubstantial, or unstable.
Pertaining to air.
aerobate
aerobate
verb
(aviation) To perform aerobatics.
aerobian
aerobian
adj
(archaic) aerobic
aerobics
aerobics
noun
A form of exercise, designed to enhance one's cardiovascular fitness, normally performed to music.
aerobion
aerobium
aeroboat
aeroboat
noun
(archaic) A form of hydroaeroplane; a flying boat.
aerocyst
aerocyst
noun
An air vesicle.
aerodone
aerodone
noun
(dated) glider (aircraft)
aeroduct
aeroduct
noun
A proposed form of ramjet that harnesses charged particles in the upper atmosphere
aerodyne
aerodyne
noun
(aviation) A heavier-than-air aircraft, deriving its lift from motion.
aeroflot
aeroflot
Proper noun
The largest airline in Russia.
aerofoil
aerofoil
noun
Britain standard form of airfoil.
aerogels
aerogels
noun
plural of aerogel
aerogene
aerogram
aerogram
noun
(dated) A wireless message.
(dated, rare) A telegram whose transmission included at least one segment sent via airplane.
(medicine, rare) A pneumogram.
A thin piece of foldable and gummed paper for writing a letter and serving as its own envelope for transit via airmail.
aeroides
aerolite
aerolite
noun
A meteorite consisting of silicate minerals.
aerolith
aerolith
noun
(chiefly historical) A meteorite.
aerology
aerology
noun
The branch of meteorology involving the observation of the atmosphere by means of balloons, kites, rockets, drones, airplanes, etc.
The study of the air and of the atmosphere and technological methods involved. Used in the US Navy until early 1957 to encompass operations as well as scientific knowledge.
aeronaut
aeronaut
noun
A person who travels through the air in an airship or balloon.
aeronomy
aeronomy
noun
A branch of science that deals with the upper atmosphere of the Earth and the other planets with reference to their chemical composition, physical properties, relative motion, and responses to radiation from space.
aerophor
aerosats
aerosols
aerosols
noun
plural of aerosol
verb
Third-person singular simple present indicative form of aerosol
aerostat
aerostat
noun
A moored balloon flown in a semi-permanent manner, such as a border patrol monitoring balloon affixed at 18,000 feet (~6 km).
An aircraft, such as a dirigible or balloon, that derives its lift from buoyancy rather than from wings or rotors.
aeroview
aetosaur
aetosaur
noun
(paleontology) Any of an extinct group of heavily armoured herbivorous archosaurian reptiles, of the order Aetosauria