(astronomy) A small periodical change of the apparent positions of the stars and other heavenly bodies, due to the combined effect of the motion of light and the motion of the observer.
(astronomy, by extension) The tendency of light rays to preferentially strike the leading face of a moving object (the effect underlying the above phenomenon).
(electronics) A defect in an image produced by an optical or electrostatic lens system.
(medicine) A deviation of a tissue, organ or mental functions from what is considered to be within the normal range.
(optics) The convergence to different foci, by a lens or mirror, of rays of light emanating from one and the same point, or the deviation of such rays from a single focus; a defect in a focusing mechanism that prevents the intended focal point.
(zoology, botany) A typical development or structure; deviation from the normal type; an aberrant organ.
A mental disorder, especially one of a minor or temporary character.
A partial alienation of reason.
The act of wandering; deviation from truth, moral rectitude; abnormal; divergence from the straight, correct, proper, normal, or from the natural state.
abiogenist
abiogenist
noun
(biology) One who believes that life can be produced independently of antecedent life.
abjections
abjections
noun
plural of abjection
ablegation
ablegation
noun
(obsolete) Expulsion; banishment.
abnegation
abnegation
noun
A denial; a renunciation; denial of desire or self-interest.
abnegators
abnegators
noun
plural of abnegator
abominated
abominated
verb
simple past tense and past participle of abominate
abominates
abominates
verb
Third-person singular simple present indicative form of abominate
abonnement
abonnement
noun
A subscription or season ticket in a French-speaking country or another country where abonnement is the local term.
aborsement
aborsement
noun
(obsolete) Abortment; abortion
abreaction
abreaction
noun
(psychoanalysis) The re-living of an experience with a view to purging its emotional dross.
absinthole
absorbents
absorbents
noun
plural of absorbent
abstention
abstention
noun
(obsolete) The act of restraining oneself.
Non-participation in the political world; as a country avoiding international affairs.
The act of abstaining or refraining (from).
The act of declining to vote on a particular issue.
abstersion
abstersion
noun
(archaic) Act of wiping clean; a cleansing; a purging.
abstertion
acanthodea
acanthodei
acanthodes
acanthoses
acanthoses
noun
plural of acanthosis
accounters
accounters
noun
plural of accounter
accretions
accretions
noun
plural of accretion
aceconitic
acervation
acervation
noun
(obsolete, rare) A heaping up; accumulation
acetaminol
acetarsone
acetarsone
noun
Synonym of acetarsol
acetonemia
acetonemia
noun
(veterinary medicine) Presence of excessive levels of acetone in blood, sometimes occurring in cows during the first weeks after giving birth to a calf.
acetonemic
acetonemic
adj
Of or pertaining to acetonemia
acetonuria
acetonuria
noun
(pathology) A form of ketonuria characterized by the presence of acetone in the urine
acetopyrin
acherontic
acherontic
adj
Alternative form of Acherontic
achondrite
achondrite
noun
(astronomy, geology) Any stony meteorite that contains no chondrules
acieration
acieration
noun
(rare) The conversion of iron into steel.
acolyctine
acolyctine
noun
(organic chemistry) An organic base, in the form of a white powder, obtained from Aconitum lycoctonum.
acotyledon
acotyledon
noun
(botany) A plant that has no cotyledons, as the dodder and all flowerless plants.
acroterion
acroterion
noun
Alternative form of acroterium
actinoidea
actinolite
actinolite
noun
(mineralogy) A mineral with monoclinic crystals of the chemical formula Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂, belonging to the amphibole group.
actinomere
actinomere
noun
(zoology) One of the radial segments making up the body of one of the Coelenterata or similar organism
actinonema
actinosome
actinosome
noun
(zoology) The entire body of a coelenterate.
actionable
actionable
adj
(law) Affording grounds for legal action.
I'm sure it's not good of me to write that he's a lush, but is it actionable?
That can be acted on; that can be used as the basis for taking action.
actionized
actionized
verb
simple past tense and past participle of actionize
actionless
actionless
adj
Lacking action; particularly with respect to entertainment, dull, boring.
acusection
adelantado
adelantado
noun
(historical) A governor of a province; a commander, in Spain and other Spanish-speaking countries.
adenectomy
adenectomy
noun
(medicine) The removal of all or part of the adenoid glands by surgery.
adenoblast
adenoblast
noun
(cytology) An embryonic cell that can develop to form glandular parenchyma
adenopathy
adenopathy
noun
(pathology) Swelling or enlargement of the glands (especially the lymph nodes); any glandular disease.
adenostoma
adenotomic
adenotomic
adj
Pertaining to adenotomy (the dissection of or incision into a gland).
adequation
adequation
noun
(linguistics) A change in the meaning of a term depending upon context
(obsolete) The act of equalizing; act or result of making adequate; an equivalent.
equivalence
adlegation
adlegation
noun
A right formerly claimed by the states of the German Empire of joining their own ministers with those of the emperor in public treaties and negotiations to the common interest of the empire.
admonitive
admonitive
adj
Of or conveying admonition
adolescent
adolescent
adj
Of, relating to, or at the age of adolescence; at the stage between being a child and an adult.
noun
A person who is in adolescence; someone who has reached puberty but is not yet an adult.
adornments
adornments
noun
plural of adornment
adroitness
adroitness
noun
skillfulness or ease of ability.
adsorbents
adsorbents
noun
plural of adsorbent
aerobating
aerobating
verb
present participle of aerobate
aerodontia
aerodontic
aeromantic
aeromantic
adj
Pertaining to or of the nature of aeromancy.
aeronautic
aeronautic
adj
Having to do with aerial navigation
aeronomist
aeronomist
Noun
One who studies aeronomy.
aestuation
aethionema
aetiogenic
affections
affections
noun
plural of affection
verb
Third-person singular simple present indicative form of affection
affrontive
affrontive
adj
Tending to affront or offend.
afternoons
afternoons
noun
plural of afternoon
aftersound
aftersound
noun
(acoustics) The second, slower phase of decay in the sound made by a piano string when it is struck.
(phonetics, obsolete) A weaker sound that immediately follows a more salient one, such as the second, less prominent vowel sound in a falling diphthong.
A sound that persists or remains audible after its source has ceased to produce it; the perception of such a sound.
aggelation
aggeration
aggeration
noun
A heaping up; accumulation.
agoniatite
agonothete
agonothete
noun
Alternative form of agonothetes
agreations
agregation
agrotechny
agrotechny
noun
The science and technology of agriculture.
akenobeite
akroterion
alboranite
aldoketene
algodonite
algodonite
noun
(mineralogy) A hexagonal copper arsenide mineral.
alienation
alienation
noun
(property law) The transfer of property to another person.
(theater) Verfremdungseffekt.
Emotional isolation or dissociation.
The act of alienating.
The state of being alienated.
alineation
alineation
noun
Alternative form of allineation
alipterion
allegation
allegation
noun
An assertion, especially an accusation, not necessarily based on facts.
The act of alleging.
allentando
allotments
allotments
noun
plural of allotment
alloxanate
alloxanate
noun
(chemistry) A salt of alloxanic acid.
alpenstock
alpenstock
noun
a stout adjustable walking stick with a metal point, used by mountain climbers and walkers in hilly or uneven terrain
alteration
alteration
noun
The act of altering or making different.
The state of being altered; a change made in the form or nature of a thing; a changed condition.
alternator
alternator
noun
(electrical engineering) An electric generator which produces alternating current through mechanical means.
ambitioned
ambitioned
adj
Having ambition
ameliorant
ameliorant
noun
A substance that helps plants grow by improving the physical condition of the soil.
Anything that improves something else.
amendatory
amendatory
adj
For the purpose of amending or correction.
amentiform
amentiform
adj
(botany) Shaped like a catkin.
ammoniated
ammoniated
verb
simple past tense and past participle of ammoniate
ammonitess
ammoniuret
anagnostes
anastomose
anastomose
adj
(botany, mycology) Joined or run together; interconnected.
(of rivers, etc) Joined or run together, ramified, interconnected.
verb
(intransitive, of rivers, blood vessels, etc.) To join by anastomosis.
(transitive, of streams and rivers, blood vessels, etc.) To join (two or more things) by anastomosis, to interconnect forming a network.
anastrophe
anastrophe
noun
(rhetoric) Unusual word order, often involving an inversion of the usual pattern of the sentence.
anatomised
anatomised
verb
simple past tense and past participle of anatomise
anatomiser
anatomiser
noun
Alternative form of anatomizer
anatomized
anatomized
verb
simple past tense and past participle of anatomize
anatomizer
anatomizer
noun
One who carries out dissection.
anatomizes
anatomizes
verb
Third-person singular simple present indicative form of anatomize
anchoretic
anchoretic
adj
Relating to an anchoret or hermit.
anchorites
anchorites
noun
plural of anchorite
andamentos
anderstorp
andouillet
anecdotage
anecdotage
noun
anecdotes considered as a group
garrulous old age
anecdotist
anecdotist
noun
One who relates anecdotes.
anelytrous
anematosis
anemometer
anemometer
noun
(meteorology) An instrument for measuring and recording the speed of the wind, a windmeter.
anemometry
anemometry
noun
Measurement of the direction and velocity of the wind.
anemopathy
anemotaxis
anemotaxis
noun
(biology) Movement of an organism in response to air currents.
anenterous
anenterous
adj
(zoology) Without a stomach or an intestine.
angiometer
angiotribe
angiotribe
noun
An instrument for controlling hemorrhages
angletouch
anhelation
anhelation
noun
(uncountable) Followed by after or for: eager desire; (countable) an instance of this.
(uncountable) Mental or spiritual agitation.
(uncountable, pulmonology, archaic) Breathing difficulty, shortness of breath.
anisoptera
anisotrope
anisotrope
adj
(dated) anisotropic
ankylotome
annerodite
annexation
annexation
noun
(law) A legal merging of a territory into another body.
Addition or incorporation of something, or territories that have been annexed.
annominate
annotative
annotative
adj
Relating to annotation.
anoestrous
anogenital
anogenital
adj
(anatomy) Of, or relating to, the anus and genitals.
anointment
anointment
noun
(figurative) An official nomination.
The act of anointing with oil or other liquids.
anomatheca
anorectous
anorectous
adj
(archaic) anorectic; lacking appetite
anorexiant
anorexiant
noun
A thing, especially a medication, that promotes a decrease in body weight or a reduction in appetite.
antagonise
antagonise
verb
Non-Oxford British English standard spelling of antagonize.
antagonize
antagonize
verb
(transitive) To work against; to oppose (especially to incite reaction)
antanagoge
antanagoge
noun
(rhetoric) Answering the charge of an adversary by a countercharge.
(rhetoric) Offsetting a proposition with an opposing proposition in one's own speech or writing.
antecessor
antecessor
noun
(now rare) A person from whom one is descended.
(now rare) A person or thing that precedes or goes before.
antechoirs
antechoirs
noun
plural of antechoir
antecloset
antedorsal
antelation
antelopian
antelopine
antemortal
antemortem
antemortem
adj
Having been inflicted or having occurred before death.