17-letter words containing s, o, r, d, i

nonproductiveness — The quality of being nonproductive.
northern rhodesia — former name of Zambia.
northern studfish — See under studfish.
nursery education — education provided at a school for young children, usually from three to five years old
odds-on favourite — a person, team, horse, etc that is regarded as the most likely to win a competition
odour of sanctity — sanctimoniousness
of its own accord — If something happens of its own accord, it seems to happen by itself, without anyone making it happen.
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 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.
one-time password — (security) (OTP) A security system that requires a new password every time a user authenticates themselves, thus protecting against an intruder replaying an intercepted password. OTP generates passwords using either the MD4 or MD5 hashing algorithms. The equivalent term "S/Key", developed by Bellcore, is a trademark of Telcordia Technologies, so the name OTP is used increasingly. See RFC 1760 - "The S/KEY One-Time Password System" and RFC 1938 - "A One-Time Password System".
order of business — a task assigned or to be dealt with: Our first order of business is to reduce expenses.
orifice discharge — Orifice discharge is a model for calculating how quickly a fluid will come out of a punctured vessel or pipe.
out of this world — the earth or globe, considered as a planet.
outside broadcast — An outside broadcast is a radio or television programme that is not recorded or filmed in a studio, but in another building or in the open air.
paradoxical sleep — REM sleep.
pate de foie gras — See under foie gras.
periodic sentence — a sentence that, by leaving the completion of its main clause to the end, produces an effect of suspense, as in Unable to join the others at the dance because of my sprained ankle, I went to a movie.
personal distance — personal space.
perth and kinross — a council area of N central Scotland, corresponding mainly to the historical counties of Perthshire and Kinross-shire: part of Tayside Region from 1975 until 1996: chiefly mountainous, with agriculture, tourism, and forestry. Administrative centre: Perth. Pop: 135 990 (2003 est). Area: 5321 sq km (2019 sq miles)
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)
post-and-rail tea — (in the 19th century) a coarse tea in which floating particles resembled a post-and-rail fence
postural drainage — a therapy for clearing congested lungs by placing the patient in a position for drainage by gravity, often accompanied by percussion with hollowed hands.
potassium bromide — a white, crystalline, water-soluble powder, KBr, having a bitter saline taste: used chiefly in the manufacture of photographic papers and plates, in engraving, and in medicine as a sedative.
pre-modifications — an act or instance of modifying.
prescription drug — medication available only on doctor's instruction
presiding officer — the person who presides over the Scottish Parliament or Welsh Assembly
production string — A production string is the series of pipes through which the oil or gas is brought up from the reservoir.
production system — (programming) A production system consists of a collection of productions (rules), a working memory of facts and an algorithm, known as forward chaining, for producing new facts from old. A rule becomes eligible to "fire" when its conditions match some set of elements currently in working memory. A conflict resolution strategy determines which of several eligible rules (the conflict set) fires next. A condition is a list of symbols which represent constants, which must be matched exactly; variables which bind to the thing they match and "<> symbol" which matches a field not equal to symbol. Example production systems are OPS5, CLIPS, flex.
production values — the quality of a media production (such as a film) in regards to elements such as colours, quality, style, etc
protected species — a species of animal or plant which it is forbidden by law to harm or destroy
prusso-danish war — a war of 1864 between Prussia and Denmark by which Denmark lost Schleswig-Holstein.
pseudo-aggressive — characterized by or tending toward unprovoked offensives, attacks, invasions, or the like; militantly forward or menacing: aggressive acts against a neighboring country.
pseudo-democratic — pertaining to or of the nature of democracy or a democracy.
pseudo-historical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
pseudo-moralistic — a person who teaches or inculcates morality.
pterygoid process — either of two long bony plates extending downwards from each side of the sphenoid bone within the skull
pyroligneous acid — a yellowish, acidic, water-soluble liquid, containing about 10 percent acetic acid, obtained by the destructive distillation of wood: used for smoking meats.
pyrosulfuric acid — a strong, crystalline acid, H2S2O7, prepared commercially as a heavy, oily, fuming liquid: used in making explosives and dyes, as a sulfating agent, etc.
radio-transparent — transparent to radiation; invisible in x-ray photographs and under fluoroscopy (opposed to radiopaque).
radioactive waste — the radioactive by-products from the operation of a nuclear reactor or from the reprocessing of depleted nuclear fuel.
radioluminescence — luminescence induced by nuclear radiation.
railroad crossing — place for vehicles to cross train tracks
recording session — a period of time devoted to recording music in a studio
red-osier dogwood — Also called red-osier dogwood. a North American dogwood, Cornus sericea (or C. stolonifera), having red twigs and branches and white fruits.
redistributionist — a person who believes in, advocates, or supports income redistribution.
reduce to silence — If someone or something reduces you to silence, they make you feel so upset or confused that you cannot speak.
reformed spelling — a revised orthography intended to simplify the spelling of English words, especially to eliminate unpronounced letters, as by substituting thru for through, tho for though, slo for slow, etc.
registered office — official business address

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