18-letter words containing a, c, o, e, n
- aristotelian logic — the logical theories of Aristotle as developed in the Middle Ages, concerned mainly with syllogistic reasoning: traditional as opposed to modern or symbolic logic
- arrogance of power — presumption on the part of a nation that its power gives it the right to intervene in the affairs of less powerful nations.
- assessment process — a series of steps that constitute a method of assessing students or workers
- associated company — a company which is largely controlled by its parent company because the latter owns anything up to 50% of the shares
- association cortex — any of the regions of the cerebral cortex of the brain connected by numerous nerve fibers to all parts of both cerebral hemispheres and coordinating such higher activities as learning and reasoning.
- astrometric binary — a binary star that can be recognized as such because of its undulating proper motion.
- at the instance of — at the suggestion or instigation of
- at/from a distance — If you are at a distance from something, or if you see it or remember it from a distance, you are a long way away from it in space or time.
- atmospheric engine — an early form of single-acting engine in which the power stroke is provided by atmospheric pressure acting upon a piston in an exhausted cylinder.
- atmospheric window — wavelengths of the electromagnetic spectrum that can be transmitted through the earth's atmosphere. Atmospheric windows occur in the visible, infrared, and radio regions of the spectrum
- attendance officer — someone whose job is to keep records of students' attendance at school and to encourage students to attend
- audio conferencing — the practice of conducting meetings by the use of audio telecommunications
- auditory phonetics — the branch of phonetics concerned with the perception of speech sounds by humans
- australopithecines — Plural form of australopithecine.
- autogenic training — a technique for reducing stress through mental exercises to produce physical relaxation
- autokinetic effect — apparent motion of a single point of light or a small object when presented on a dark field and observed continuously.
- aviation insurance — Aviation insurance is insurance cover for aircraft, and for damage, injury, or loss of life or cargo while traveling on aircraft.
- axile placentation — a type of placenta structure in an ovary with the ovules forming at the angles where the septa join the central placenta
- bachelor apartment — a flat consisting of one room that is used as a sitting room and bedroom, as well as a kitchenette and a bathroom
- bachelor's-buttons — any of various plants of the daisy family with button-like flower heads
- back end generator — (tool) (BEG) A code generator developed by H. Emmelmann et al at GMD, University Karlsruhe, Germany. Its input language is Back End Generator Language (BEGL).
- back to square one — If you are back to square one, you have to start dealing with something from the beginning again because the way you were dealing with it has failed.
- back/down to earth — If you come down to earth or back to earth, you have to face the reality of everyday life after a period of great excitement.
- background reading — reading of related works in order to get contextual information on a topic that you are intending to study or write about
- balance an account — If you balance an account, you adjust entries in the account in order to make the credit and debit totals equal.
- balanced computing — (jargon) Matching computer tools to job activities so that the computer system structure parallels the organisation structure and work functions. Both personal computers and employees operate in a decentralised environment with monitoring of achievement of management objectives from centralised corporate systems.
- balanced scorecard — A balanced scorecard is a type of management report which includes both financial and non-financial measures.
- bargaining counter — A bargaining counter is the same as a bargaining chip.
- basal conglomerate — a conglomerate deposited on an erosion surface and constituting the bottom layer of a stratigraphic series.
- battle of clontarf — a battle fought in 1014, near Dublin, in the Republic of Ireland, in which the Danes were defeated by the Irish but the Irish king, Brian Boru, was killed
- be in good company — If you say that someone is in good company, you mean that they should not be ashamed of a mistake or opinion, because some important or respected people have made the same mistake or have the same opinion.
- beauty competition — a competition in which the participants, usually women, are judged on their attractiveness, with a prize, and often a title, awarded to the winner
- behavioral science — any of several studies, as sociology, psychology, anthropology, etc., that examine human activities in an attempt to discover recurrent patterns and to formulate rules about social behavior
- benchmark position — a public service job used for comparison with a similar position, such as a position in commerce, for wage settlements
- bend over backward — to try to an unusual degree (to please, pacify, etc.)
- benzyl thiocyanate — a colorless, crystalline, water-insoluble solid, C 8 H 7 NS, used as an insecticide.
- biodiversification — the process by which the diversity of plants or animals develops or is increased within a particular region or group of organisms.
- biological parents — the biological mother and father of a child
- black nickel oxide — a gray-black, water-insoluble powder, Ni 2 O 3 , which, at 600°C, decomposes to nickel oxide: used chiefly in storage batteries as an oxidizing agent.
- black-necked stork — a large Australian stork, Xenorhyncus asiaticus, having a white plumage, dark green back and tail, and red legs
- blackback flounder — any of various popular food flatfishes, as Parophrys vetulus of the Pacific (English sole) and Pseudopleuronectes americanus of the Atlantic (winter flounder or blackback flounder)
- blanche of castile — ?1188–1252, queen consort (1223–26) of Louis VIII of France, born in Spain. The mother of Louis IX, she acted as regent during his minority (1226–36) and his absence on a crusade (1248–52)
- blissful ignorance — unawareness or inexperience of something unpleasant
- board of education — a group or agency with responsibility for education
- board of elections — a bipartisan board appointed usually by local authorities and charged with control of elections and voting procedure.
- bottom dead center — Bottom dead center is the point at which the piston of an engine is nearest to the axis of the crankshaft. On a vertical engine, this is the lowest point that the piston reaches.
- bottom dead centre — the position of the crank of a reciprocating engine when the piston is at its nearest point to the crankshaft
- brand-name product — A brand-name product is one which is made by a well-known manufacturer and has the manufacturer's label on it.
- breach of contract — the act of breaking the conditions of a contract
- break your silence — If someone breaks their silence about something, they talk about something that they have not talked about before or for a long time.