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15-letter words containing p, a, t, r, o

  • aphrodite terra — a large plateau region that stretches approximately halfway around the middle latitude of Venus.
  • apolipoproteins — Plural form of apolipoprotein.
  • apollo asteroid — one of a number of asteroids whose orbits cross that of the earth.
  • apollo computer — (company)   A company making workstations often used for CAD. From 1980 to 1987, Apollo were the largest manufacturer of network workstations. Apollo workstations ran Aegis, a proprietary operating system with a Posix-compliant Unix alternative frontend. Apollo's networking was particularly elegant, among the first to allow demand paging over the network, and allowing a degree of network transparency and low sysadmin-to-machine ratio that is still unmatched. Apollo's largest customers were Mentor Graphics (electronic design), GM, Ford, Chrysler, and Boeing (mechanical design). Apollo was acquired by Hewlett-Packard in 1989, and gradually closed down over the period 1990-1997.
  • apostle pitcher — a stoneware pitcher decorated in relief with figures of the apostles.
  • apostles' creed — a concise statement of Christian beliefs dating from about 500 ad, traditionally ascribed to the Apostles
  • apostolic vicar — vicar apostolic.
  • apostrophically — (rhetoric) Using apostrophe; with sudden exclamatory dialogue.
  • appellate court — In the United States, an appellate court is a special court where people who have been convicted of a crime can appeal against their conviction.
  • apprentice work — work done when young and a novice
  • approach lights — lights on the runway that guide planes coming in to land
  • approachability — capable of being approached; accessible.
  • appropinquation — the action of approaching
  • appropriateness — suitable or fitting for a particular purpose, person, occasion, etc.: an appropriate example; an appropriate dress.
  • approval rating — approval of a politician as shown by opinion polls
  • approximateness — The quality of being approximate.
  • arc de triomphe — the triumphal arch in Paris begun by Napoleon I to commemorate his victories of 1805–6 and completed in 1836
  • arch of triumph — Arc de Triomphe.
  • archiepiscopate — the rank, office, or term of office of an archbishop
  • armaments depot — a store for armaments
  • arms inspection — the official checking of a country's weapons and other military equipment, usually to check that international agreements have been respected
  • astrophotograph — a photograph of the heavenly bodies
  • astrophotometry — the measurement of the intensity of light of celestial objects.
  • astrophysically — from an astrophysical point of view
  • astrophysicists — Plural form of astrophysicist.
  • athletic sports — sports, esp track and field events, in which athleticism is required
  • atmospherically — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
  • autobiographers — Plural form of autobiographer.
  • autobiographies — Plural form of autobiography.
  • autolithography — a lithographic technique by which the artist draws or traces with a brush and pen directly on a stone or plate.
  • automorphically — in an automorphic manner
  • autoradiographs — Plural form of autoradiograph.
  • autoradiography — the technique or process of making autoradiographs.
  • 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
  • autotransplants — Plural form of autotransplant.
  • autotrophically — through an autotrophic process
  • 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
  • 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.
  • bacteriophagous — Pertaining to the predation and consumption of bacterium.
  • bandstop filter — A bandstop filter is a filter designed to eliminate all frequencies within a band of frequencies.
  • banking product — one of the various services offered by a bank to its customers: mortgages, loans, insurance etc
  • baptism of fire — If someone who has just begun a new job has a baptism of fire, they immediately have to cope with very many severe difficulties and obstacles.
  • barothermograph — an automatic instrument for recording pressure and temperature.
  • beam-power tube — a vacuum tube in which the stream of electrons flowing to the plate is focused by the action of a set of auxiliary, charged elements, giving an increase in output power.
  • beet leafhopper — a small leafhopper (Circulifer tenellus) that transmits a very destructive virus to sugar beets
  • biostratigraphy — the examination of the ages of rock strata by using fossils
  • black operation — a covert and undocumented military operation
  • blasting powder — a form of gunpowder made with sodium nitrate instead of saltpeter, used chiefly for blasting rock, ore, etc.
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