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17-letter words containing l, a, p

  • old age pensioner — An old age pensioner is a person who is old enough to receive an pension from their employer or the government.
  • old spanish trail — an overland route from Santa Fe, N. Mex., to Los Angeles, Calif., first marked out in 1776 by Spanish explorers and missionaries.
  • olympic mountains — a mountain range in NW Washington: part of the Coast Range. Highest peak: Mount Olympus, 2427 m (7965 ft)
  • olympic peninsula — a large peninsula of W Washington
  • omphalomesenteric — (anatomy) Of or pertaining to the umbilicus and mesentery.
  • one-parent family — A one-parent family is a family that consists of one parent and his or her children living together.
  • onomatopoetically — the formation of a word, as cuckoo, meow, honk, or boom, by imitation of a sound made by or associated with its referent.
  • open-channel flow — Open-channel flow is a liquid flow in a channel, which has a free liquid surface.
  • operation sealion — the codename for Hitler's proposed invasion (1940) of Great Britain
  • opportunistically — adhering to a policy of opportunism; practicing opportunism.
  • optical astronomy — the branch of observational astronomy using telescopes to observe or photograph celestial objects in visible light.
  • optical carrier 3 — (networking)   (OC-3) A SONET rate of 3 * 51.84 = 155.52 megabits per second, which matches STS-3.
  • optical carrier n — (networking)   (OC-n) A SONET rate of n times 51.84 megabits per second.
  • optical computing — (hardware)   (Or "Optical Signal Processing") Operating on data represented using electromagnetic radiation, e.g. visible light, instead of the electrical signals used in a conventional electronic digital computer. Electronic digital computers are built from transistors. These form components that store data and logic gates that perform the low-level Boolean operations such as AND, OR and NOT that are the basis of all digital computation. The optical equivalent requires material with a non-linear refractive index such that light beams can interact with each other to perform the same Boolean operations. Though the photons that carry optical signals offer some theoretical advantages over the electrons that carry electronic signals, there are many practical problems that would have to be overcome before optical computing could compete in terms of cost, power and speed.
  • optical isomerism — stereoisomerism in which the isomers are identical in molecular weight and most chemical and physical properties but differ in their effect on the rotation of polarized light.
  • oregon crab apple — a shrub or small tree, Malus fusca, of the rose family, of the northwestern coast of North America, having hairy leaves, white flowers, and yellow or green oblong fruit.
  • painted greenling — a greenling, Oxylebius pictus, inhabiting the Pacific coastal waters of North America, having a whitish body marked with black bands.
  • pair annihilation — Physics. annihilation (def 3a).
  • palace revolution — a challenge to or overthrow of a sovereign or other leader by members of the ruling family or group.
  • palaeoarchaeology — the branch of archaeology concerned with the earliest fossil remains
  • palaeoclimatology — the study of climates of the geological past
  • palaeoethnobotany — the study of fossil seeds and grains to further archaeological knowledge, esp of the domestication of cereals
  • paleoanthropology — the study of the origins and predecessors of the present human species, using fossils and other remains.
  • paleobiochemistry — the study of biochemical processes that occurred in fossil life forms.
  • paleobiogeography — the study of the distribution of ancient plants and animals and their relation to ancient geographic features.
  • paleoconservative — a person advocating an older, traditional type of conservatism, especially in politics.
  • palette of narmer — a king of Egypt identified by modern scholars as the Menes of tradition and depicted as the unifier of Upper and Lower Egypt on an ancient slate tablet (Narmer Palette or Palette of Narmer) c3200 b.c. with relief carvings on both sides.
  • pan and tilt head — a mounting device on which a camera may be rotated in a horizontal plane (pan) or in a vertical plane (tilt)
  • panama canal zone — Canal Zone.
  • papanicolaou test — Pap test.
  • paradoxical sleep — REM sleep.
  • parallel computer — parallel processor
  • parallel universe — Physics. any of a hypothetical collection of undetectable universes that are like our known universe but have branched off from our universe due to a quantum-level event. See also multiverse.
  • parallelogram law — Mathematics, Physics. a rule for adding two vectors, as forces (parallelogram of forces) by placing the point of application of one at the point of origin of the other and obtaining their sum by constructing the line connecting the two remaining end points, the sum being the diagonal of the parallelogram whose adjacent sides are the two vectors.
  • paralysis agitans — Parkinson's disease
  • parathyroid gland — any of several small oval glands usually lying near or embedded in the thyroid gland.
  • parcplace systems — (company)   A company spun-off from Xerox PARC that developed the original version of VisualWorks.
  • parker house roll — a soft dinner roll made by folding a flat disk of dough in half.
  • parliamentary law — the body of rules, usages, and precedents that governs proceedings of legislative and deliberative assemblies.
  • partially sighted — unable to see properly so that even with corrective aids normal activities are prevented or seriously hindered
  • particle kinetics — Particle kinetics is the study of the movement of particles and the forces that cause this movement.
  • particle velocity — the velocity of a point in a medium that is undergoing wave motion.
  • particularization — to make particular.
  • parts per million — the number of units (of a substance) present in a million units of another substance
  • pascal's triangle — a triangular arrangement of the binomial coefficients of the expansion (x + y) n for positive integral values of n.
  • pashmina politics — the adoption of political policies immediately after they have gone out of fashion
  • past life therapy — a form of hypnosis or meditation based on the belief that an individual's present problems are rooted in events that occurred before birth in this life
  • pastoral symphony — the Symphony No. 6 in F major (1807–08) by Ludwig van Beethoven.
  • pastoral theology — the branch of theology dealing with the responsibilities of members of the clergy to the people under their care.
  • paternalistically — the system, principle, or practice of managing or governing individuals, businesses, nations, etc., in the manner of a father dealing benevolently and often intrusively with his children: The employees objected to the paternalism of the old president.
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