14-letter words containing a, t, i
- antithrombotic — preventing the formation of blood clots
- antitubercular — acting against tuberculosis
- antiulcerative — An antiulcerative is an agent that prevents the formation or promotes the healing of ulcers.
- antiuniversity — a group or institution which disregards the established traditions or practices of university education
- antoine domino — Antoine ("Fats") born 1928, U.S. rhythm-and-blues pianist, singer, and composer.
- antoninus pius — 86–161 ad, emperor of Rome (138–161); adopted son and successor of Hadrian
- anxiety attack — a sudden onset of extreme distress and agitation
- anxiety-attack — an intense attack of anxiety characterized by feelings of impending doom and trembling, sweating, pounding heart, and other physical symptoms.
- any occupation — Any occupation insurance covers a person if they cannot work under any circumstances, in any occupation, following an accident, injury, or disability.
- aperture ratio — relative aperture.
- apheliotropism — a tendency of certain plants to turn away from the sun; negative heliotropism
- aphoristically — in an aphoristic manner
- apocalypticism — the belief in apocalyptic prophecy
- apolipoprotein — any of a group of glycoproteins that form part of the structure of lipoproteins, some of which have been associated with Alzheimer's disease
- apologetically — containing an apology or excuse for a fault, failure, insult, injury, etc.: An apologetic letter to his creditors explained the delay.
- apophthegmatic — Alternative form of apothegmatic.
- apoplectically — of or relating to apoplexy or stroke.
- aposematically — in an aposematic manner
- apostrophizing — Present participle of apostrophize.
- apothegmatical — Relating to, or in the manner of, an apothegm; sententious; pithy.
- apotropaically — in an apotropaic manner
- appendectomies — Plural form of appendectomy.
- appendicectomy — surgical removal of any appendage, esp the vermiform appendix
- apportionments — Plural form of apportionment.
- appreciational — gratitude; thankful recognition: They showed their appreciation by giving him a gold watch.
- appreciatively — feeling or showing appreciation: an appreciative audience at the concert.
- apprenticement — apprenticeship
- apprenticeship — Someone who has an apprenticeship works for a fixed period of time for a person who has a particular skill in order to learn the skill. Apprenticeship is the system of learning a skill like this.
- approach light — one of a series of lights installed along the projected centerline of an airport runway to assist a pilot in aligning the aircraft during the approach to landing at night.
- appropriations — Plural form of appropriation.
- approximations — Plural form of approximation.
- approximeeting — the practice of a group of people making indefinite plans to meet and then altering those plans regularly via mobile phones according to changing circumstances
- apsidal motion — the rotation of the major axis of an eccentric orbit in the plane of the orbit.
- aquatic centre — a complex with facilities for water sports, including swimming pools
- arabia deserta — an ancient division of Arabia, in the N part between Syria and Mesopotamia.
- arabia petraea — an ancient division of Arabia, in the NW part.
- arabian desert — a desert in E Egypt, between the Nile, the Gulf of Suez, and the Red Sea: mountainous parts rise over 1800 m (6000 ft). Area: about 220 000 sq km (85 000 sq miles)
- arabian nights — Thea collection of ancient tales from Arabia, India, Persia, etc.
- arboricultural — Of or pertaining to the care, planting and maintenance of trees.
- arc-jet engine — a type of rocket engine using propellant gas heated by an electric arc.
- archaebacteria — (formerly) a group of microorganisms now regarded as members of the Archaea
- archaeocyathid — one of the marine invertebrates of the extinct phylum Archaeocyatha, widely distributed during the Cambrian Period, having a limy, typically conical or cylindrical skeleton composed of sievelike inner and outer walls.
- archaeologists — Plural form of archaeologist.
- archaeometrist — a person who uses archaeometry
- archebacterium — (biology) alternative spelling of archaebacterium.
- archetypically — the original pattern or model from which all things of the same kind are copied or on which they are based; a model or first form; prototype.
- archgenethliac — the person most proficient at casting horoscopes
- archidiaconate — the office, term of office, or area of jurisdiction of an archdeacon
- archimandrites — Plural form of archimandrite.
- archipterygium — (anatomy) A primitive fin, like that of Ceratodus.