12-letter words containing a, n, t, i
- affirmations — Plural form of affirmation.
- affrightment — the act of causing fear or alarm
- affrontingly — in an affronting manner
- aforestation — Alternative spelling of afforestation.
- african time — unpunctuality
- afrocentrism — centered on Africa or on African-derived cultures, as those of Brazil, Cuba, and Haiti: Afrocentric art.
- after-dinner — immediately following dinner: an after-dinner speech.
- afterburning — a process in which additional fuel is ignited in the exhaust gases of a jet engine to produce additional thrust
- against time — in an effort to complete something in a limited period
- agamogenetic — Of or pertaining to agamogenesis.
- agathodaimon — a spirit of good fortune, associated with the serpent
- agglutinable — Able to be agglutinated; that readily undergoes agglutination.
- agglutinated — Simple past tense and past participle of agglutinate.
- agglutinates — Third-person singular simple present indicative form of agglutinate.
- agglutinogen — an antigen that reacts with or stimulates the formation of a specific agglutinin
- aggravations — Plural form of aggravation.
- aggregations — Plural form of aggregation.
- aggrievement — the state of being aggrieved
- aggrupations — Plural form of aggrupation.
- agnostically — a person who holds that the existence of the ultimate cause, as God, and the essential nature of things are unknown and unknowable, or that human knowledge is limited to experience. Synonyms: disbeliever, nonbeliever, unbeliever; doubter, skeptic, secularist, empiricist; heathen, heretic, infidel, pagan.
- agroindustry — an activity combining agriculture and industry
- aiming point — the point at which a gun or bombsight is aimed in order to strike a desired target, often a point in advance of or behind the actual target.
- air ministry — (in England) the department of government administering all civil and military matters concerning aviation.
- air terminal — An air terminal is a building in which passengers wait before they get on to an aeroplane.
- aircraftsman — a person holding the rank of noncommissioned officer in the RAF.
- airtightness — the quality of being airtight
- alcaptonuria — Alternative spelling of alkaptonuria.
- aldolization — the conversion of an aldehyde to aldol
- alienability — (uncountable) The quality of being alienable.
- alimentation — sustenance; support
- alimentative — nourishing; nutritive.
- alkalization — Alkalinization.
- alkaptonuria — excessive excretion of homogentisic acid in the urine, caused by a hereditary abnormality of the metabolism of tyrosine and phenylalanine.
- alliteration — Alliteration is the use in speech or writing of several words close together which all begin with the same letter or sound.
- alloantibody — an antibody that reacts with an antigen from a genetically different individual of the same species.
- almightiness — The state or quality of being almighty.
- alphitomancy — the use of barley meal as a means of divination.
- alpine-style — of or in an ascent (esp in high mountains like the Himalayas) in which the climbers carry all their equipment with them in a single ascent from base to summit
- altercations — Plural form of altercation.
- alternations — Plural form of alternation.
- alternatives — a choice limited to one of two or more possibilities, as of things, propositions, or courses of action, the selection of which precludes any other possibility: You have the alternative of riding or walking.
- altiloquence — Pompous language; lofty speech.
- altitudinous — pertaining to altitude or height
- amalgamating — Present participle of amalgamate.
- amalgamation — the action or process of amalgamating
- ambartsumian — Viktor A(mazaspovich). 1908–96, Armenian astrophysicist, renowned for his description of radio sources as explosions in the core of galaxies
- ambiposition — (linguistics) An adposition that can occur either before or after its complement.
- ambisinister — clumsy or unskillful with both hands.
- ambitendency — ambivalence, especially when acted out; a tendency to contradictory behavior arising from conflicting impulses.
- ambitionless — without ambition, unambitious