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15-letter words containing a, r

  • autolithography — a lithographic technique by which the artist draws or traces with a brush and pen directly on a stone or plate.
  • automata theory — the formal study of the power of computation of abstract machines
  • automatic drive — an automotive transmission requiring either very little or no manual shifting of gears.
  • automatic rifle — a type of light machine gun capable of firing automatically or in single shots.
  • automorphically — in an automorphic manner
  • autoradiographs — Plural form of autoradiograph.
  • autoradiography — the technique or process of making autoradiographs.
  • autorhythmicity — The quality of being autorhythmic, or generating its own rhythm, as for example the cells of the cardiac muscle do.
  • autostereoscopy — The display of stereoscopic images without the use of special viewing equipment.
  • autotetraploidy — the generation of the tetraploid state, created by the fusing of two nuclei from the same species
  • autotransformer — a transformer in which part of the winding is common to both primary and secondary circuits
  • autotransfusion — a process in which a patient receives some of his or her own blood in a transfusion rather than a donor's blood
  • autotransplants — Plural form of autotransplant.
  • autotrophically — through an autotrophic process
  • auxiliary rotor — the tail rotor of a helicopter, used for directional and rotary control
  • avant la lettre — before the (specified) concept, word, person, etc. existed
  • average revenue — the total receipts from sales divided by the number of units sold, frequently employed in price theory in conjunction with marginal revenue.
  • aviator glasses — sunglasses that look like goggles
  • away-going crop — a crop planted by a tenant that matures after the expiration of the tenancy and is rightfully the tenant's to harvest.
  • azerty keyboard — a common European version of typewriter keyboard layout with the characters a, z, e, r, t, and y positioned on the top row of alphabetic characters at the left side of the keyboard
  • azobisformamide — (chemistry) azodicarbonamide.
  • back plastering — the introduction of partitions of lath and plaster between the inner and outer surfaces of a stud wall in order to improve the insulating properties of the wall.
  • back projection — a method of projecting pictures onto a translucent screen so that they are viewed from the opposite side, used esp in films to create the illusion that the actors in the foreground are moving
  • back-scratching — a reciprocal exchange of favors, aid, or compliments
  • backseat driver — If you refer to a passenger in a car as a backseat driver, they annoy you because they constantly give you advice about how to drive.
  • backup rotation — (operating system)   Any system for re-using backup media, e.g. magnetic tape. One extreme would be to use the same media for every backup (e.g. copy disk A to disk B), the other extreme would be to use new media every time. The trade-off is between the cost of buying and storing media and the ability to restore any version of any file. One example is the Grandfather, Father, Son (GFS) scheme.
  • backup software — (tool, software)   Software for doing a backup, often included as part of the operating system. Backup software should provide ways to specify what files get backed up and to where. It may include its own scheduling function to automate the procedure or, preferably, work with generic scheduling facilities. It may include facilities for managing the backup media (e.g. maintaining an index of tapes) and for restoring files from backups. Examples are Unix's dump command and Windows's ntbackup.
  • baconian theory — the theory attributing the authorship of Shakespeare's plays to Francis Bacon.
  • bacterial ghost — a bacterial cell that is emptied and filled artificially with another substance
  • bacteriological — Of or relating to bacteriology or bacteria.
  • bacteriophagous — Pertaining to the predation and consumption of bacterium.
  • bad housekeeper — a person who is not an efficient and thrifty domestic manager
  • badminton court — the court on which games of badminton are played
  • baggage handler — a person who moves baggage onto and off planes at an airport
  • baggage reclaim — the process of passengers' getting back the baggage that they have checked in for a flight
  • baja california — peninsula in Mexico, between the Pacific & the Gulf of California: divided into a northern state (Baja California), 27,071 sq mi (70,114 sq km), pop. 1,661,000, cap. Mexicali; and a southern state (Baja California Sur), 28,447 sq mi (73,677 sq km), pop. 318,000, cap. La Paz
  • balance control — a state of equilibrium or equipoise; equal distribution of weight, amount, etc.
  • balanced rudder — a rudder so designed that the center of water pressure on the forward face, when turned, lies about halfway along the length, minimizing the turning effort required.
  • ballet mistress — a woman who teaches and rehearses the dancers in a ballet company
  • balloon barrage — a series of moored balloons, usually strung together and hung with cables, for impeding a low-level attack by enemy aircraft.
  • ballpark figure — approximate number
  • ballpeen hammer — a hammer that has one end of its head shaped in a hemisphere for beating metal, etc
  • ballroom dancer — a person who participates in ballroom dancing
  • banana republic — Small, poor countries that are politically unstable are sometimes referred to as banana republics.
  • banded anteater — an Australian marsupial, Myrmecobius fasciatus, feeding on termites and having the body marked with whitish transverse bars: nearly extinct.
  • bandpass filter — A bandpass filter is a filter designed to pass all frequencies within a band of frequencies.
  • bandstop filter — A bandstop filter is a filter designed to eliminate all frequencies within a band of frequencies.
  • bangtail muster — a roundup of cattle to be counted, each one having the hairs on its tail docked as it is counted
  • banking product — one of the various services offered by a bank to its customers: mortgages, loans, insurance etc
  • banner headline — A banner headline is a large headline in a newspaper that stretches across the front page.
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