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15-letter words containing a, p, r

  • aneroid capsule — a box or chamber of thin metal, partially exhausted of air, used in the aneroid barometer and pressure altimeter.
  • angel's-trumpet — any of several plants belonging to the genera Brugmansia and Datura, of the nightshade family, having large, trumpet-shaped flowers in a variety of colors.
  • angina pectoris — a sudden intense pain in the chest, often accompanied by feelings of suffocation, caused by momentary lack of adequate blood supply to the heart muscle
  • angle of repose — the maximum angle to the horizontal at which rocks, soil, etc, will remain without sliding
  • anisotropically — Physics. of unequal physical properties along different axes. Compare isotropic (def 1).
  • annapolis royal — a town in SE Canada in W Nova Scotia on an arm of the Bay of Fundy: the first settlement in Canada (1605). Pop: 550 (2001)
  • annual parallax — the apparent displacement of an observed object due to a change in the position of the observer.
  • annular eclipse — an eclipse of the sun in which the moon does not cover the entire disc of the sun, so that a ring of sunlight surrounds the shadow of the moon
  • antarctic plate — a major tectonic division of the earth's crust, comprising Antarctica and adjacent ocean basins (the South Indian, Southeast Pacific, and Atlantic-Indian basins) and bounded on the north by the Nazca, South American, African, Indo-Australian, and Pacific plates.
  • anteprohibition — before prohibition.
  • anteroposterior — Relating to or directed toward both front and back.
  • anthropobiology — the biological study of the human species
  • anthropocentric — regarding man as the most important and central factor in the universe
  • anthropogenesis — the study of the origins of man
  • anthropological — the science that deals with the origins, physical and cultural development, biological characteristics, and social customs and beliefs of humankind.
  • anthropologists — Plural form of anthropologist.
  • anthropometrics — the science of measuring the size and proportions of the human body (called anthropometry), especially as applied to the design of furniture and machines.
  • anthropomorphic — Anthropomorphic means relating to the idea that an animal, a god, or an object has feelings or characteristics like those of a human being.
  • anthropopathism — ascription of human passions or feelings to a being or beings not human, especially to a deity.
  • anthropophagite — a cannibal
  • anthropophagous — Who practices anthropophagy.
  • anthropopsychic — the attribution of consciousness to divine beings and nature
  • anthroposophist — A proponent of anthroposophy.
  • anti-censorship — the act or practice of censoring.
  • anti-corruption — the act of corrupting or state of being corrupt.
  • anti-depressant — An anti-depressant is a drug which is used to treat people who are suffering from depression.
  • anti-patriarchy — a form of social organization in which the father is the supreme authority in the family, clan, or tribe and descent is reckoned in the male line, with the children belonging to the father's clan or tribe.
  • anti-productive — having the power of producing; generative; creative: a productive effort.
  • anti-puritanism — the principles and practices of the Puritans.
  • anti-republican — of, relating to, or of the nature of a republic.
  • anti-separatist — a person who separates, withdraws, or secedes, as from an established church.
  • antiaphrodisiac — something that represses sexual desire
  • anticardiolipin — (medicine, immunology) Directed against cardiolipin.
  • anticlinal trap — An anticlinal trap is a structural trap which is closed by an anticline (= an arch-shaped fold in rock, in which rock layers are upwardly convex).
  • antidepressants — of or relating to a substance that is used in the treatment of mood disorders, as characterized by various manic or depressive affects.
  • antiperistalses — Plural form of antiperistalsis.
  • antiperistalsis — contractions of the intestine that force the contents in the opposite direction to the normal
  • antiperistaltic — reversed peristaltic action of the intestines, by which their contents are carried upward.
  • antiperspirants — Plural form of antiperspirant.
  • antipornography — opposed to or acting against pornography
  • antiprogressive — opposed to or acting against progression in society
  • antitranspirant — any substance that decreases transpiration and, usually, photosynthesis
  • apartment block — building: flats, apartments
  • apartment hotel — a hotel that rents furnished apartments or suites suitable for housekeeping, on a weekly or more permanent basis, and usually supplies all hotel services.
  • apartment house — a building containing a number of residential apartments.
  • aphrodite terra — a large plateau region that stretches approximately halfway around the middle latitude of Venus.
  • apical meristem — meristem at the apex of a root or shoot.
  • 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.
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