19-letter words containing o, n, a
- 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.
- answerphone message — a pre-recorded message that is left on an answering machine, usually inviting callers to leave a message
- anterograde amnesia — amnesia caused by brain damage in which the memory loss relates to events occurring after the damage
- 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-prohibitionist — a person who favors or advocates prohibition.
- 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.
- antimony trisulfide — a black or orange-red crystalline compound, Sb2S3, used as a pigment, in pyrotechnics and matches, for fireproofing fabrics and paper, etc.
- antoine louis barye — Antoine Louis [ahn-twan lwee] /ɑ̃ˈtwan lwi/ (Show IPA), 1795–1875, French sculptor and painter.
- apollonius dyscolus — died a.d. c140, Greek grammarian.
- apollonius of perga — ?261–?190 bc, Greek mathematician, remembered for his treatise on conic sections
- application program — a computer program that is written and designed for a specific need or purpose
- application testing — system testing
- appointment viewing — the practice of setting time aside to watch particular television programmes
- appointments bureau — an office responsible for filling appointments
- arbitration service — a service which provides an impartial referee to settle disputes
- aristotle's lantern — a complex arrangement of muscles and calcareous teeth and plates forming an eversible organ in most echinoids, functioning in mastication.
- ark of the covenant — the chest containing the two stone tablets inscribed with the Ten Commandments, kept in the holiest part of the ancient Jewish Tabernacle: Ex. 25:10
- armed response unit — (in Britain) a unit of police officers who are trained to use firearms in situations where unarmed police officers would be in danger
- aromatase inhibitor — any of a class of drugs that inhibit the action of aromatase: used in the treatment of breast and ovarian cancer
- 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 long as your arm — If you say that a list is as long as your arm, you are emphasizing that it is very long.
- as things/people go — You use expressions like as things go or as children go when you are describing one person or thing and comparing them with others of the same kind.
- ask for a signature — If you ask for a signature, you ask someone to write their name, in their own characteristic way, on a document.
- asperger's syndrome — a form of autism in which the person affected has limited but obsessive interests, and has difficulty relating to other people
- assistant professor — An assistant professor is a college teacher who ranks above an instructor but below an associate professor.
- at a (or one) blow — by one action
- at once/all at once — If a number of different things happen at once or all at once, they all happen at the same time.
- at one's discretion — as one wishes
- at one's fingertips — readily available and within one's mental grasp
- 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
- atherton technology — (company) The comapny that developed the Software BackPlane CASE framework. Their Atherton Tool Integration Services were the basis for the ATIS standard.
- 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.
- atrial fibrillation — a local and uncontrollable twitching of muscle fibres that results in rapid and irregular heart and pulse rate
- 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).
- audio response unit — a device that enables a computer to give a spoken response by generating sounds similar to human speech.
- 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.
- austro-prussian war — the war (1866) in which Prussia, Italy, and some minor German states opposed Austria, Saxony, Hanover, and the states of southern Germany.
- author's alteration — a correction or change made in typeset copy that is not a correction of an error introduced by the compositor. Abbreviation: AA, A.A., a.a., aa.
- autotransplantation — autograft.