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17-letter words containing i, a

  • attraction sphere — centrosphere (sense 1)
  • audience research — research into the make-up and habits of the audience of a particular television or radio programme or network
  • audio description — a facility provided for visually impaired people in which a film, television programme, or play is described through audio technology
  • audio-visual aids — training or educational materials directed at both the sense of hearing and the sense of sight; films, recordings, photographs, etc., used in classroom instruction, library collections, or the like.
  • augmented reality — an artificial environment created through the combination of real-world and computer-generated data
  • aurea mediocritas — the golden mean.
  • australia antigen — an antigen present in the blood of some persons with one form of hepatitis
  • australia current — a branch of the South Equatorial Current flowing SW from around Fiji to the E coast of Australia and then S along the coast.
  • australian ballot — an official ballot listing candidates for election to public office and issues, levies, etc., distributed inside the polling place to be marked by the voter in secret: it originated in Australia and is widely used in the U.S.
  • australian kelpie — one of an Australian breed of medium-sized sheepherding dogs having a short, harsh, straight coat in a combination of colors that can include black, red, tan, fawn, chocolate, or smoke blue, probably developed by crossbreeding between the border collie and dingo.
  • australian salute — a movement of the hand and arm made to brush flies away from one's face
  • australopithecine — any of various extinct apelike primates of the genus Australopithecus and related genera, remains of which have been discovered in southern and E Africa. Some species are estimated to be over 4.5 million years old
  • authoritativeness — having due authority; having the sanction or weight of authority: an authoritative opinion.
  • authority control — the establishment and maintainance of consistent forms of terms, as of names, subjects, and titles, to be used as headings in bibliographic records.
  • autocatalytically — In an autocatalytic manner.
  • autocorrelational — Of or pertaining to autocorrelation.
  • automated testing — (testing)   Software testing assisted with software tools that require no operator input, analysis, or evaluation.
  • automatic vending — selling goods by vending machines
  • automatic writing — writing performed without apparent intent or conscious control, especially to achieve spontaneity or uncensored expression.
  • autosensitization — autoimmunization.
  • auxiliary storage — secondary storage.
  • average deviation — a measure of dispersion, computed by taking the arithmetic mean of the absolute values of the deviations of the functional values from some central value, usually the mean or median.
  • average seek time — (storage)   The mean time it takes to move the head of a disk drive from one track to another, averaged over the source and destination cylinders. Usually measured in milliseconds (ms). The average seek time gives a good measure of the speed of the drive in a multi-user environment where successive read/write request are largely uncorrelated. Ten ms is common for a hard disk and 200 ms for an eight-speed CD-ROM.
  • aviation industry — a collective term for the companies involved in air transport
  • aviation medicine — the branch of medicine concerned with the effects on man of flight in the earth's atmosphere
  • avoirdupois pound — a pound weighing 16 ounces
  • axis of abscissas — x-axis (def 1).
  • axis of ordinates — y-axis (def 1).
  • axis-of-abscissas — x-axis (def 1).
  • axis-of-ordinates — y-axis (def 1).
  • babe in the woods — a baby or child.
  • babi yar symphony — a symphony (1962) by Dimitri Dimitrievich Shostakovich.
  • babinski's reflex — a reflex extension of the great toe with flexion of the other toes, evoked by stroking the sole of the foot: normal in infants but otherwise denoting central nervous system damage.
  • baby doll nightie — a short, frilly nightdress
  • back on the rails — If something is back on the rails, it is beginning to be successful again after a period when it almost failed.
  • backward analysis — (theory)   An analysis to determine properties of the inputs of a program from properties or context of the outputs. E.g. if the output of this function is needed then this argument is needed. Compare forward analysis.
  • backward chaining — (algorithm)   An algorithm for proving a goal by recursively breaking it down into sub-goals and trying to prove these until facts are reached. Facts are goals with no sub-goals which are therefore always true. Backward training is the program execution mechanism used by most logic programming language like Prolog. Opposite: forward chaining.
  • bacon's rebellion — an unsuccessful uprising by frontiersmen in Virginia in 1676, led by Nathaniel Bacon against the colonial government in Jamestown.
  • bacteriologically — In a bacteriological manner; with respect to bacteriology.
  • bacteriorhodopsin — a purple protein containing retinal and found in the plasma membrane of certain bacteria (genus Halobacterium): it directly supplies electrochemical energy from sunlight
  • baggage screening — the procedure whereby baggage is electronically screened at an airport before it is allowed on the plane
  • bahia de cochinos — Spanish name of Bay of Pigs.
  • baile atha cliath — Dublin
  • baile-atha-cliath — Gaelic Baile Àtha Cliath. a seaport in and the capital of the Republic of Ireland, in the E part, on the Irish Sea.
  • balanced literacy — a method of teaching reading in which phonics and whole language approaches are both used to maximize student learning.
  • ballistic missile — a missile that has no wings or fins and that follows a ballistic trajectory when its propulsive power is discontinued
  • baltimore clipper — a small, fast American sailing vessel of the early 19th century, having a sharp hull form and two masts with a pronounced rake and carrying a brig or schooner rig.
  • banking principle — the principle that bank notes are a form of credit and should be issued freely in order to maintain an elastic currency.
  • bar-tailed godwit — a large wader, Limosa lapponica, of the family Scolopacidae which, in migrating from Alaska to New Zealand, makes the longest journey without stopping for food taken by any animal
  • barbed wire fence — a fence constructed from strong wire that has sharply pointed barbs at close intervals along its length
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