12-letter words containing a, s, t, i
- astrobiology — the branch of biology that investigates the possibility of life elsewhere in the universe
- astrochemist — (chemistry, astronomy) A chemist or astronomer whose speciality is astrochemistry.
- astrodynamic — Pertaining to astrodynamics.
- astrological — the study that assumes and attempts to interpret the influence of the heavenly bodies on human affairs.
- astronautics — the science and technology of space flight
- astronomical — If you describe an amount, especially the cost of something as astronomical, you are emphasizing that it is very large indeed.
- astrophysics — Astrophysics is the study of the physical and chemical structure of the stars, planets, and other natural objects in space.
- astrotourist — a person who pays to travel into space as a form of recreation
- astroturfing — a PR tactic used in politics and advertising in which actors are paid to display overt and apparently spontaneous grassroots support for a particular product, policy, or event
- asymmetrical — Something that is asymmetrical has two sides or halves that are different in shape, size, or style.
- asymptomatic — If someone with a disease is asymptomatic, it means that they do not show any symptoms of the disease.
- asymptotical — of or relating to an asymptote.
- at all times — all the time, constantly
- at intervals — If something happens at intervals, it happens several times with gaps or pauses in between.
- at this rate — If you say that at this rate something bad or extreme will happen, you mean that it will happen if things continue to develop as they have been doing.
- atactostelic — Of or possessing an atactostele.
- athrocytosis — the capability of a cell to receive and store matter
- athwartships — from one side to the other of a vessel at right angles to the keel
- atmospherics — Atmospherics are elements in something such as a piece of music or a book which create a certain atmosphere.
- atmospherium — an optical system used to simulate images of atmospheric phenomena, as cloud formations, storms, and day and night, on the inside of a dome.
- atorvastatin — a statin, (C 33 H 34 FN 2 O 5) 2 ·Ca 3 H 2 O, used in the prevention and treatment of heart disease.
- attawapiskat — a river in NE Ontario, Canada, flowing E and N to James Bay. 465 miles (748 km) long.
- attitudinous — (informal) Having a bold and possibly unfriendly attitude; sassy.
- attorneyship — The office or profession of an attorney.
- attributions — Plural form of attribution.
- auction sale — an instance of items being sold by auction
- auction site — a commercial website on which items are sold by internet auction
- audio system — integrated equipment for producing amplified sound, as in a hi-fi or a mobile disco, or as a public-address system on stage
- audiologists — Plural form of audiologist.
- auscultating — Present participle of auscultate.
- auscultation — the diagnostic technique in medicine of listening to the various internal sounds made by the body, usually with the aid of a stethoscope
- austenitized — to form austenite in (a ferrous alloy) by heating.
- austin friar — one of the Hermits of St. Augustine.
- australasian — Australasian means belonging or relating to Australasia or to its people.
- australopith — (archaeology, anthropology, paleonotology) Of or pertaining to the extinct hominid primates, of the genus Australopithecus, from the Pleistocene period.
- austronesian — of or relating to Austronesia, its peoples, or their languages
- autistically — in an autistic manner or the manner of a person who has autism
- auto-erotism — the arousal and satisfaction of sexual excitement within or by oneself, as by masturbation.
- autoanalysis — Psychoanalysis. self-analysis.
- autodiallers — Plural form of autodialler.
- autoeciously — in an autoecious manner
- autohypnosis — the process or result of self-induced hypnosis
- automobilism — the use of automobiles, or the practices associated with them
- automobilist — Driver; person who uses a motor vehicle such as car, van or truck.
- automorphism — the practice of seeing others as having the same characteristics as oneself
- autorickshaw — (in India) a light three-wheeled vehicle driven by a motorcycle engine
- autotheistic — Self-worshiping; prideful in the extreme.
- avascularity — the condition of having few blood vessels or of being without blood vessels
- aviculturist — A person who keeps and rears (breeds) birds.
- avitaminosis — any disease caused by a vitamin deficiency in the diet