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18-letter words containing a, c, i, e

  • 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.
  • athletic supporter — jockstrap
  • 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 figures — the number of people present at events such as football matches or concerts
  • 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.
  • authorized capital — the total amount of value of the shares that a company is allowed to distribute
  • 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.
  • automatic exposure — the automatic adjustment of the lens aperture and shutter speed of a camera by a control mechanism
  • 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
  • axiological ethics — the branch of ethics dealing primarily with the relative goodness or value of the motives and end of any action.
  • back in the saddle — at work again
  • background reading — reading of related works in order to get contextual information on a topic that you are intending to study or write about
  • 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.
  • ballistic pendulum — a device consisting of a large mass hung from a horizontal bar by two rods, used to measure the velocity of an object, as a bullet, by retaining the object upon impact, its velocity being a function of the displacement of the mass.
  • bargaining counter — A bargaining counter is the same as a bargaining chip.
  • 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
  • benzyl thiocyanate — a colorless, crystalline, water-insoluble solid, C 8 H 7 NS, used as an insecticide.
  • bichromate process — any of several methods of photography in which the light-sensitive medium is alkaline bichromate associated with a colloid such as gum, albumen, or gelatin.
  • 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
  • biological therapy — biotherapy
  • biological warfare — the use of living organisms or their toxic products to induce death or incapacity in humans and animals and damage to plant crops, etc
  • biomedical package — (language, library, statistics)   (BMDP) A statistical language and library of over forty statistical routines developed in 1961 at UCLA, Health Sciences Computing Facility under Dr. Wilford Dixon. BMDP was first implemented in Fortran for the IBM 7090. Tapes of the original source were distributed for free all over the world. BMDP is the second iteration of the original BIMED programs. It was developed at UCLA Health Sciences Computing facility, with NIH funding. The "P" in BMDP originally stood for "parameter" but was later changed to "package". BMDP used keyword parameters to defined what was to be done rather than the fixed card format used by original BIMED programs. BMDP supports many statistical funtions: simple data description, survival analysis, ANOVA, multivariate analyses, regression analysis, and time series analysis. BMDP Professional combines the full suite of BMDP Classic (Dynamic) release 7.0 with the BMDP New System 2.0 Windows front-end.
  • biz-core stability — (security)   Internet security products which secure the business core.
  • black lives matter — a political and social movement originating among African Americans, emphasizing basic human rights and racial equality for black people and campaigning against various forms of racism. Abbreviations: BLM, B.L.M.
  • 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.
  • blackwater rafting — the sport of riding through underground caves on a large rubber tube
  • 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
  • blue-plate special — an inexpensive restaurant meal served at a fixed price on a large plate, originally blue
  • board of directors — A company's board of directors is the group of people elected by its shareholders to manage the company.
  • 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.
  • borosilicate glass — any of a range of heat- and chemical-resistant glasses, such as Pyrex, prepared by fusing together boron(III) oxide, silicon dioxide, and, usually, a metal oxide
  • breach of security — an act that violates a country, area, or building's security measures
  • bread and circuses — something offered as a means of distracting attention from a problem or grievance
  • 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.
  • breathing exercise — an exercise intended to promote effective and healthy breathing and breath control
  • brewer's blackbird — a blackbird, Euphagus cyanocephalus, of the U.S., the male of which has greenish-black plumage with a purplish-black head.
  • broadcasting house — any of a number of buildings in the UK from which the BBC broadcasts or has broadcast
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