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17-letter words containing s, p, i, l, e

  • omphalomesenteric — (anatomy) Of or pertaining to the umbilicus and mesentery.
  • operation sealion — the codename for Hitler's proposed invasion (1940) of Great Britain
  • 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.
  • paleobiochemistry — the study of biochemical processes that occurred in fossil life forms.
  • paleoconservative — a person advocating an older, traditional type of conservatism, especially in politics.
  • papanicolaou test — Pap test.
  • paradoxical sleep — REM sleep.
  • 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.
  • 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.
  • 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.
  • 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
  • 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.
  • peloponnesian war — a war between Athens and Sparta, 431–404 b.c., that resulted in the transfer of hegemony in Greece from Athens to Sparta.
  • penitential psalm — any of the Psalms (the 6th, 32nd, 38th, 51st, 102nd, 130th, and 143rd) that give expression to feelings of penitence and that are used in various Christian liturgical services.
  • percussion bullet — a bullet that is exploded by percussion
  • peripheral vision — all that is visible to the eye outside the central area of focus; side vision.
  • perpetual spinach — a variety of spinach that keeps producing edible leaves
  • personal distance — personal space.
  • personal equation — the tendency to personal bias that accounts for variation in interpretation or approach and for which allowance must be made.
  • personality clash — friction between two people who have different personalities or points of view
  • personnel carrier — a vehicle used for transporting troops
  • personnel officer — a worker responsible for recruiting employees and dealing with matters relating to them
  • phenyl isocyanate — a liquid reagent, C 7 H 5 NO, having an unpleasant, irritating odor: used chiefly for identifying alcohols and amines.
  • philosopher kings — the Platonic ideal of a ruler, philosophically trained and enlightened.
  • photoluminescence — luminescence induced by the absorption of infrared radiation, visible light, or ultraviolet radiation.
  • physical exercise — movements and activities done to keep your body healthy or make it stronger
  • physical medicine — the branch of medicine dealing with the diagnosis and treatment of disease and injury by means of physical agents, as manipulation, massage, exercise, heat, or water.
  • physical pendulum — any apparatus consisting of a body of possibly irregular shape allowed to rotate freely about a horizontal axis on which it is pivoted (distinguished from simple pendulum).
  • pillar-and-breast — room-and-pillar.
  • pillion passenger — a person who travels in a seat or place behind the rider of a motorcycle, scooter, horse, etc
  • pincushion flower — scabious2 (def 1).
  • plastic explosive — a puttylike substance that contains an explosive charge, and is detonated by fuse or by remote control: used especially by terrorists and in guerrilla warfare.
  • play with oneself — a dramatic composition or piece; drama.
  • plumbing fixtures — things such as pipes, sinks, toilets that are fixed in position in a building
  • pluvius insurance — insurance against rain
  • pocket battleship — a small heavily armed and armored warship serving as a battleship because of limitations imposed by treaty.
  • point reyes lilac — a prostrate shrub, Ceanothus gloriosus, of southern California, having leathery, roundish leaves and purplish or deep-blue flowers.
  • pointer swizzling — swizzle
  • poison-pen letter — A poison-pen letter is an unpleasant unsigned letter which is sent in order to upset someone or to cause trouble.
  • polar coordinates — Usually, polar coordinates. one of two coordinates used to locate a point in a plane by the length of its radius vector and the angle this vector makes with the polar axis (polar angle)
  • polioencephalitis — a disease characterized by inflammation of the gray matter of the brain.
  • political science — a social science dealing with political institutions and with the principles and conduct of government.
  • polystyrene chips — small pieces of polystyrene used for insulating or packing
  • positive electron — positron.
  • positive polarity — the grammatical characteristic of a word or phrase, such as delicious or rather, that may normally only be used in a semantically or syntactically positive or affirmative context
  • positive theology — a theological approach or tradition in which the nature of God is thought to be knowable and is understood through positive statements. See also cataphasis (def 2).
  • post-and-rail tea — (in the 19th century) a coarse tea in which floating particles resembled a post-and-rail fence
  • post-depositional — removal from an office or position.
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