16-letter words containing a, s, t
- athanasian creed — a profession of faith widely used in the Western Church which, although formerly attributed to Athanasius, probably originated in Gaul between 381 and 428 ad
- atmospheric tide — a movement of atmospheric masses caused by the gravitational attraction of the sun and moon and by daily solar heating.
- atomic mass unit — a unit of mass used to express atomic and molecular weights that is equal to one twelfth of the mass of an atom of carbon-12. It is equivalent to 1.66 × 10–27 kg
- atomic physicist — a scientist specializing in atomic physics
- atomic structure — the concept of an atom as a central positively charged nucleus consisting of protons and neutrons surrounded by a number of electrons. The number of electrons is equal to the number of protons: the whole entity is thus electrically neutral
- attendance sheet — an official document for listing those attending a meeting, class, course, etc
- atwood's machine — a device consisting of two unequal masses connected by a string passed over a pulley, used to illustrate the laws of motion.
- auditory aphasia — aphasia in which there is no comprehension of spoken words; word deafness.
- auditory vesicle — the pouch that is formed by the invagination of an ectodermal placode and that develops into the internal ear.
- aurora australis — the aurora seen around the South Pole
- australian crawl — a stroke in which the feet are kicked like paddles while the arms reach forward and pull back through the water
- australian rules — a game resembling rugby football, played in Australia between teams of 18 men each on an oval pitch, with a ball resembling a large rugby ball. Players attempt to kick the ball between posts (without crossbars) at either end of the pitch, scoring six points for a goal (between the two main posts) and one point for a behind (between either of two outer posts and the main posts). They may punch or kick the ball and run with it provided that they bounce it every ten yards
- australopithecus — an extinct genus of small-brained,large-toothed bipedal hominids that lived in Africa between one and four million years ago.
- austro-hungarian — of or relating to the Dual Monarchy of Austria-Hungary (1867–1918)
- authoritarianism — Authoritarianism is the state of being authoritarian or the belief that people with power, especially the State, have the right to control other people's actions.
- autofluorescence — (biology, microscopy) Self-induced fluorescence.
- automatic pistol — a type of pistol having a mechanism that throws out the empty shell, puts in a new one, and prepares the pistol to be fired again.
- autoregressively — In an autoregressive manner.
- autostereoscopic — Of or pertaining to autostereoscopy.
- autotransformers — Plural form of autotransformer.
- autotransfusions — Plural form of autotransfusion.
- average adjuster — a person who calculates average claims, esp for marine insurance
- aversion therapy — a method of suppressing an undesirable habit, such as excessive smoking, by causing the subject to associate an unpleasant effect, such as an electric shock or nausea, with the habit
- away from sb/sth — If something is away from a person or place, it is at a distance from that person or place.
- axis of symmetry — Mathematics. a straight line for which every point on a given curve has corresponding to it another point such that the line connecting the two points is bisected by the given line.
- axminster carpet — a type of patterned carpet with a cut pile
- bachelor of arts — a degree conferred on a person who has successfully completed his or her undergraduate studies, usually in a branch of the liberal arts or humanities
- bachelor-at-arms — bachelor (def 4).
- back-seat driver — If you refer to a passenger in a car as a back-seat driver, they annoy you because they constantly give you advice.
- balance transfer — the act of transferring debt from one credit card to another, assuming that the second card has better terms or interest rates than the first
- balkan mountains — a mountain range extending across Bulgaria from the Black Sea to the eastern border. Highest peak: Mount Botev, 2376 m (7793 ft)
- ballast resistor — ballast (def 5a).
- ballast-resistor — Nautical. any heavy material carried temporarily or permanently in a vessel to provide desired draft and stability.
- ballistic camera — a camera for tracking missiles launched at night.
- baluster measure — an antique liquid measure usually made of pewter, having a concave top on a convex base.
- band-pass filter — a filter that transmits only those currents having a frequency lying within specified limits
- banned substance — In sport, banned substances are drugs that competitors are not allowed to take because they could artificially improve their performance.
- barbecue stopper — a controversial current-affairs issue
- bare necessities — only the essentials
- bargain basement — If you refer to something as a bargain basement thing, you mean that it is cheap and not very good quality.
- bargain-basement — very low-priced.
- baron tweedsmuir — the title of Scottish novelist John Buchan
- bartholomeu dias — Bartholomeu [bahr-too-loo-me-oo] /ˌbɑr tʊ lʊˈmɛ ʊ/ (Show IPA), c1450–1500, Portuguese navigator: discoverer of the Cape of Good Hope.
- basal anesthesia — anesthesia induced as a preliminary to further and deeper anesthesia
- basal metabolism — the amount of energy required by an individual in the resting state, for such functions as breathing and circulation of the blood
- basement complex — the undifferentiated assemblage of rock (basement rock) underlying the oldest stratified rocks in any region: usually crystalline, metamorphosed, and mostly, but not necessarily, Precambrian in age.
- basic dichromate — an orange-red, amorphous, water-insoluble powder, Bi 2 O 3 ⋅2CrO 3 , used chiefly as a pigment in paints.
- bastard culverin — a 16th-century cannon, smaller than a culverin, firing a shot of between 5 and 8 pounds (11 and 17.6 kg).
- bastard daughter — an illegitimate daughter
- bastard mahogany — an Australian tree, Eucalyptus botryoides, of the myrtle family, having lance-shaped leaves and furrowed bark.