19-letter words containing a, c, o, i
- american directoire — a style of American furniture making and related crafts from c1805 to c1815, corresponding to the French Directoire and English Regency styles.
- american revolution — a sequence of actions by American colonists from 1763 to 1775 protesting British domination and culminating in the Revolutionary War
- american smoke tree — a small tree, Cotinus obovatus, of the cashew family, of the central southern U.S., having yellowish flowers and clusters of fleshy fruit with silky plumes.
- amino acid sequence — the unique sequence of amino acids that characterizes a given protein
- anaerobic digestion — the conversion of biodegradable waste matter into compost in the absence of oxygen
- analytic philosophy — a 20th-cent. philosophic movement characterized by its method of analyzing concepts and statements in the light of common experience and ordinary language so as to eliminate confusions of thought and resolve many traditional philosophical problems
- analytic psychology — the system of psychology developed by C. G. Jung as a variant of psychoanalysis
- analytical geometry — the branch of geometry that uses algebraic notation and analysis to locate a geometric point in terms of a coordinate system; coordinate geometry
- anarcho-syndicalism — syndicalism.
- anarcho-syndicalist — syndicalism.
- anatomical snuffbox — the triangular depression on the back of the hand between the thumb and the index finger
- angioneurotic edema — swelling that occurs just beneath the surface of the skin or mucous membranes.
- angle of reflection — the angle that a beam of reflected radiation makes with the normal to a surface at the point of reflection
- angle of refraction — the angle that a refracted beam of radiation makes with the normal to the surface between two media at the point of refraction
- anno urbis conditae — in a (specified) year from the founding of the city: the ancient Romans reckoned dates from Rome's founding, c. 753 b.c.
- anthropic principle — the cosmological theory that the presence of life in the universe limits the ways in which the very early universe could have evolved
- anthropocentrically — regarding the human being as the central fact of the universe.
- anthropomorphically — ascribing human form or attributes to a being or thing not human, especially to a deity.
- anti-comintern pact — a pact formed in 1936, based on agreements between Germany and Japan to oppose communism and the Third International: Italy and Spain subsequently became signatories.
- anti-vivisectionist — a person who opposes vivisection.
- anticholinesterases — Plural form of anticholinesterase.
- anticipatory breach — a declaration by one party to a contract that it does not intend to fulfil its obligations to the second party, who can then accept this declaration and choose not to be bound by the contract
- anticompetitiveness — The quality of being anticompetitive.
- apollonius dyscolus — died a.d. c140, Greek grammarian.
- application program — a computer program that is written and designed for a specific need or purpose
- application testing — system testing
- aqueduct of sylvius — a canal in the midbrain, connecting the third and fourth ventricles of the brain.
- arbitration service — a service which provides an impartial referee to settle disputes
- arecibo observatory — an observatory in Puerto Rico at which the world's largest dish radio telescope (diameter 305 m) is situated. It is operated by the National Astronomy and Ionosphere Center
- arsenic trichloride — a colorless or yellow, oily, poisonous liquid, AsCl 3 , used chiefly as an intermediate in the manufacture of organic arsenicals.
- artemis microkernel — (operating system) A microkernel currently under development by Dave Hudson <[email protected]>, scheduled for release under GPL in May 1995. It is targeted at embedded applications on Intel 80386, Intel 486 and Pentium based systems.
- as sick as a parrot — If you say that you feel as sick as a parrot, you feel very disappointed about something.
- associate professor — An associate professor is a college teacher who ranks above an assistant professor but below a professor.
- associative storage — a storage device in which the information is identified by content rather than by an address
- at one's discretion — as one wishes
- at sb's convenience — If something is arranged to happen at your convenience, it happens at a time which is most suitable for you.
- at your convenience — at a time suitable to you
- atmospheric braking — a technique of reentry in which the vehicle is maneuvered in the upper atmosphere so as to lose velocity by utilizing drag without overheating.
- attachment disorder — an emotional and behavioral disorder arising from a failure to form a strong bond with one’s primary caregiver in early childhood and affecting one’s social relationships in later childhood and adulthood. See also attachment (def 3a).
- augmented cognition — the study of the augmenting of human mental functions by computer programs
- augsburg confession — the statement of beliefs and doctrines of the Lutherans, formulated by Melanchthon and endorsed by the Lutheran princes, which was presented at the Diet of Augsburg in 1530 and which became the chief creed of the Lutheran Church.
- auriculoventricular — atrioventricular.
- autoerotic asphyxia — asphyxia caused by intentionally strangling oneself while masturbating in order to intensify the orgasm through reduced oxygen flow to the brain.
- ave regina coelorum — a Latin hymn in honor of the Virgin Mary as Queen of Heaven.
- axiomatic semantics — (theory) A set of assertions about properties of a system and how they are effected by program execution. The axiomatic semantics of a program could include pre- and post-conditions for operations. In particular if you view the program as a state transformer (or collection of state transformers), the axiomatic semantics is a set of invariants on the state which the state transformer satisfies. E.g. for a function with the type: sort_list :: [T] -> [T] we might give the precondition that the argument of the function is a list, and a postcondition that the return value is a list that is sorted. One interesting use of axiomatic semantics is to have a language that has a finitely computable sublanguage that is used for specifying pre and post conditions, and then have the compiler prove that the program will satisfy those conditions. See also operational semantics, denotational semantics.
- bachelor of science — A Bachelor of Science is a first degree in a science subject. In British English, it can also mean a person with that degree. The abbreviation BSc or , BSc is also used.
- backward compatible — backward compatibility
- bacteriochlorophyll — a pale blue-gray form of chlorophyll that is unique to the photosynthetic but anaerobic purple bacteria.
- baja california sur — a state of NW Mexico, in the S part of the Lower California peninsula. Capital: La Paz. Pop: 423 516 (2000). Area: 73 475 sq km (28 363 sq miles)
- balfour declaration — the statement made by Arthur Balfour in 1917 of British support for the setting up of a national home for the Jews in Palestine, provided that the rights of "existing non-Jewish communities" in Palestine could be safeguarded