17-letter words containing s, i, l, o
- objectionableness — The quality of being objectionable.
- off-site facility — An off-site facility is a facility which is not at the main industrial or commercial site.
- 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 contemptibles — the British expeditionary force to France in 1914
- old south arabian — a group of four closely related Semitic languages, having a writing system and used from about the eighth to the fifth centuries b.c. in the southern part of Arabia.
- 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.
- old wives' summer — a period of fine, summerlike weather occurring in Europe in autumn.
- 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.
- on cruise control — If you say that someone is on cruise control in a contest, you mean that they are winning the contest easily and without needing to make a lot of effort.
- on someone's tail — following or shadowing someone closely
- one size fits all — (of clothing) designed to fit people of a wide range of sizes.
- one-size-fits-all — (of clothing) designed to fit people of a wide range of sizes.
- 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 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.
- osculating circle — circle of curvature.
- otolaryngologists — Plural form of otolaryngologist.
- out of this world — the earth or globe, considered as a planet.
- 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.
- parts per million — the number of units (of a substance) present in a million units of another substance
- pashmina politics — the adoption of political policies immediately after they have gone out of fashion
- patriarchal cross — a Latin cross having a shorter crosspiece above the customary one.
- 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.
- 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.
- 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.
- 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).
- plains of abraham — a high plain adjoining the city of Quebec, Canada: battlefield where the English under Wolfe defeated the French under Montcalm in 1759.
- 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.
- 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.