(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.
abominated
abominated
verb
simple past tense and past participle of abominate
abominates
abominates
verb
Third-person singular simple present indicative form of abominate
abreaction
abreaction
noun
(psychoanalysis) The re-living of an experience with a view to purging its emotional dross.
absinthole
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
acanthodei
accretions
accretions
noun
plural of accretion
aceconitic
acervation
acervation
noun
(obsolete, rare) A heaping up; accumulation
acetaminol
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.
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
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
adroitness
adroitness
noun
skillfulness or ease of ability.
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.
aggelation
aggeration
aggeration
noun
A heaping up; accumulation.
agoniatite
agreations
agregation
akenobeite
akroterion
alboranite
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.
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.
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.
amentiform
amentiform
adj
(botany) Shaped like a catkin.
ammoniated
ammoniated
verb
simple past tense and past participle of ammoniate
ammonitess
ammoniuret
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
andouillet
anecdotist
anecdotist
noun
One who relates anecdotes.
anematosis
anemotaxis
anemotaxis
noun
(biology) Movement of an organism in response to air currents.
angiometer
angiotribe
angiotribe
noun
An instrument for controlling hemorrhages
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
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.
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.
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)
antechoirs
antechoirs
noun
plural of antechoir
antelation
antelopian
antelopine
anteriorly
anteriorly
adv
before (in time)
in front (in position)
towards the anterior
anthelions
anthophile
anthophile
noun
(zoology) An organism that visits flowers.
A person who loves flowers.
antibodies
antibodies
noun
plural of antibody
antichrome
anticorset
anticorset
adj
Opposing the wearing of corsets.
anticosine
anticosine
noun
Synonym of arccosine
antiegoism
antiegoist
antifelony
antifouler
antifouler
noun
Synonym of antifoulant
antigorite
antigorite
noun
(mineralogy) A brownish-green variety of serpentine.
antiheroes
antiheroes
noun
plural of antihero
antiheroic
antiheroic
adj
(narratology) Of, pertaining to or typical of an antihero.
antilepton
antilepton
noun
(physics) The antiparticle of a lepton.
antiloemic
antilogies
antilogies
noun
plural of antilogy
antilopine
antilopine
adj
Relating to, or resembling, antelopes in the bovid subfamily Antelopinae.
Relating to, or resembling, antelopes in the tribe Antelopini within that subfamily
Relating to, or resembling, antelopes.
noun
An antilopine kangaroo
Any antelope in the subfamily Antelopinae
Any antelope in the tribe Antilopini
antimethod
antimodern
antimodern
adj
Opposed to modernity or modernization
noun
A person opposed to modernity or modernization
antimonate
antimonate
noun
(inorganic chemistry) Any salt or ester of antimonic acid; the anion SbO₄³⁻
antimonide
antimonide
noun
(inorganic chemistry) Any compound of antimony with more electropositive elements.
antimonies
antimonies
noun
Misspelling of antinomies.
plural of antimony
antimonite
antimonite
noun
(countable, inorganic chemistry) Any of several oxyanions of antimony such as H₂SbO₃⁻; any salt containing this ion
(mineralogy) A grey mineral, antimony sulfide (Sb₂S₃) that is the main source of antimony; stibnite
antinomies
antinomies
noun
plural of antinomy
antinoness
antinovels
antinovels
noun
plural of antinovel
antiochene
antioxygen
antioxygen
noun
The antimatter counterpart of oxygen. Made up of positron and antiprotons instead of electrons and protons.
antiphoner
antiphoner
noun
An antiphonal.
antipleion
antipleion
noun
A region of negative departure from a norm.
antipodean
antipodean
adj
(informal) of, or pertaining to, Australia or New Zealand
diametrically opposed
relating to the antipodes, or situated at opposite sides of the Earth
noun
An inhabitant of the antipodes.
antipoenus
antipoetic
antipoetic
adj
Opposed to poetry.
antipolice
antipolice
adj
Opposed to or prejudiced against the police
antipopery
antipopery
noun
Opposition to popery.
antireform
antireform
adj
(politics) Opposing reform
antitoxine
antitoxine
noun
Archaic form of antitoxin.
antizealot
antizealot
noun
One who opposes zealotry.
antoecians
antoinetta
antoinette
antoinette
Proper noun
name; best known for the ill fated French queen Marie Antoinette.
antonietta
antonymies
antonymies
noun
plural of antonymy
antozonite
antozonite
noun
(mineralogy) A radioactive variety of fluorite, containing traces of elemental fluorine gas.
aphronitre
aphthonite
apocentric
apocentric
adj
(astrophysics) Of or pertaining to the apocenter, the point in an orbit which is furthest from the orbited body
apopenptic
apothesine
appetition
appetition
noun
A desire, longing for, or seeking after of something.
appointees
appointees
noun
plural of appointee
appointers
appointers
noun
plural of appointer
appointive
appointive
adj
Of, pertaining to, or filled by appointment.
arctoidean
arefaction
arefaction
noun
(rare or obsolete) The fact or process of drying; desiccation.