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20-letter words containing a, r, i, e, t

  • antidiuretic hormone — vasopressin. Abbreviation: ADH.
  • antifriction bearing — a roller bearing or ball bearing.
  • antigestational drug — a drug that averts a pregnancy by preventing the fertilized egg from becoming implanted in the uterine wall.
  • antimony oxychloride — a white, water-insoluble powder, SbOCl, used chiefly in the manufacture of antimony salts.
  • antimony trifluoride — a white to grayish-white, crystalline, hygroscopic, water-soluble, poisonous solid, SbF 3 , used chiefly in dyeing textiles.
  • aortic insufficiency — abnormal closure of the aortic valve resulting in regurgitation of blood to the left ventricle.
  • apothecaries' weight — a system of weights, formerly used in pharmacy, based on the Troy ounce, which contains 480 grains. 1 grain is equal to 0.065 gram
  • apple computer, inc. — (company)   Manufacturers of the Macintosh range of personal computers as well as the earlier Apple I, Apple II and Lisa. Founded on 1 April 1976 by Steve Jobs and Steve Wozniak. Apples were among the first microcomputers. They originally used the 6502 processor and are still being made (August 1994), now using the 65816. The Apple II line, which includes the Apple I, is the longest existing line of microcomputers. Steve Jobs left Apple (involuntarily) and started NeXT and later returned when Apple bought NeXT in late 1997(?). Quarterly sales $2150M, profits $138M (Aug 1994). http://apple.com/.
  • application software — software designed for a specific need or purpose
  • arches national park — a national park in E Utah: natural arch formations. 114 sq. mi. (295 sq. km).
  • architectural bronze — a brass alloy of about 57 percent copper, 41 percent zinc, and 2 percent lead.
  • argument from design — the argument for the existence of God based on the assumption that order in the universe implies an orderer and cannot be a natural feature of the universe.
  • armchair quarterback — a person who is not a quarterback (or general, etc.), but offers opinions and criticism on the performance or decisions of those who are
  • articulatory feature — a property of a speech sound based on its voicing or on its place or manner of articulation in the vocal tract, as voiceless, bilabial, or stop used in describing the sound (p).
  • artificial pacemaker — an electronic device for use in certain cases of heart disease to assume the functions of the natural cardiac pacemaker
  • artificial satellite — a man-made device orbiting around the earth, moon, or another planet transmitting to earth scientific information or used for communication
  • artificial selection — a process in the breeding of animals and in the cultivation of plants by which the breeder chooses to perpetuate only those forms having certain desirable inheritable characteristics.
  • as right as a trivet — in perfect health
  • as straight as a die — perfectly honest
  • asexual reproduction — reproduction, as budding, fission, or spore formation, not involving the union of gametes.
  • asian tiger mosquito — a mosquito, Aedes albopictus, native to Asia, that transmits yellow fever and dengue and possibly West Nile virus. Compare yellow-fever mosquito.
  • asset turnover ratio — An asset turnover ratio is a measure of the efficiency of a company, that is calculated by dividing sales for a period by average total assets.
  • astatic galvanometer — a galvanometer that is unaffected by the earth's magnetic field and is used for measuring small currents.
  • asymmetrical warfare — warfare between a powerful military force and a weak guerilla force
  • at one's finger tips — the tip or end of a finger.
  • at someone's service — ready to serve or cooperate with someone
  • at two hours' notice — with notification only two hours in advance
  • atmospheric pressure — Atmospheric pressure is the pressure of the atmosphere on the Earth's surface.
  • attachment parenting — a style of child rearing aimed at developing a strong emotional bond between the child and primary caregiver. See also attachment (def 3a).
  • attacks as a service — (security, legal)   A kind of cybercrime as a service in which the service provider performs denial of service attacks on behalf of others for money.
  • australian rye grass — a European grass, Lolium multiflorum, naturalized in North America, having flowering spikes and used as a winter turf.
  • automobile insurance — Automobile insurance is insurance coverage for cars.
  • auxiliary power unit — an additional engine fitted to an aircraft to operate when the main engines are not in use
  • axiomatic set theory — (theory)   One of several approaches to set theory, consisting of a formal language for talking about sets and a collection of axioms describing how they behave. There are many different axiomatisations for set theory. Each takes a slightly different approach to the problem of finding a theory that captures as much as possible of the intuitive idea of what a set is, while avoiding the paradoxes that result from accepting all of it, the most famous being Russell's paradox. The main source of trouble in naive set theory is the idea that you can specify a set by saying whether each object in the universe is in the "set" or not. Accordingly, the most important differences between different axiomatisations of set theory concern the restrictions they place on this idea (known as "comprehension"). NBG (von Neumann-Bernays-Goedel) set theory sort of allows comprehension for all formulae without restriction, but distinguishes between two kinds of set, so that the sets produced by applying comprehension are only second-class sets. NBG is exactly as powerful as ZF, in the sense that any statement that can be formalised in both theories is a theorem of ZF if and only if it is a theorem of ZFC. MK (Morse-Kelley) set theory is a strengthened version of NBG, with a simpler axiom system. It is strictly stronger than NBG, and it is possible that NBG might be consistent but MK inconsistent. ML ("Modern Logic") is to NF as NBG is to ZF. (Its name derives from the title of the book in which Quine introduced an early, defective, form of it). It is stronger than ZF (it can prove things that ZF can't), but if NF is consistent then ML is too.
  • backwards compatible — backward compatibility
  • bacteriochlorophylls — Plural form of bacteriochlorophyll.
  • ballet-wrap cardigan — a cardigan with wrapover fronts which are fastened with wraparound ties
  • ballistic trajectory — the path of an unpowered object, as a missile, moving only under the influence of gravity and possibly atmospheric friction and with its surface providing no significant lift to alter the course of flight.
  • baptism for the dead — the baptism of a living person in the place of and for the sake of one who has died unbaptized: now practiced chiefly by Mormons.
  • bartramian sandpiper — upland sandpiper.
  • basal metabolic rate — the rate at which heat is produced by the body at rest, 12 to 14 hours after eating, measured in kilocalories per square metre of body surface per hour
  • basic lead carbonate — ceruse.
  • basic object adapter — (architecture)   (BOA) Part of the CORBA architecture.
  • basic rate interface — (communications)   (BRI, 2B+D, 2B1D) An Integrated Services Digital Network channel consisting of two 64 kbps "bearer" (B) channels and one 16 kbps "delta" (D) channel, giving a total data rate of 144 kbps. The B channels are used for voice or user data, and the D channel is used for control and signalling and/or X.25 packet networking. BRI is the kind of ISDN interface most likely to be found in residential service.
  • bats-wing coral-tree — a small tree, Erythrina verspertilio, of tropical and subtropical Australia with red flowers and leaves shaped like the wings of a bat
  • be in the market for — to wish to buy or acquire
  • beaverhead mountains — a mountain range on the border of E Idaho and SW Montana, in the Bitterroot Range. 10,961 feet (3343 meters).
  • benavente y martinez — Jacinto. 1866–1954, Spanish dramatist and critic, who wrote over 150 plays. Nobel prize for literature 1922
  • benoit b. mandelbrot — Benoit Mandelbrot
  • benztropine mesylate — a synthetic anticholinergic, C 21 H 25 NO⋅CH 4 O 3 S, used in the treatment of Parkinson's disease.
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