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12-letter words containing u, r, s, o

  • norton sound — an arm of the Bering Sea on the W coast of Alaska, S of the Seward Peninsula. About 150 miles (240 km) long and 125 miles (200 km) wide.
  • nourishments — Plural form of nourishment.
  • np-hilarious — (humour)   An algorithm whose complexity is a joke, either literally, as in BogoSort, or metaphorically.
  • nugatoriness — Quality of being nugatory.
  • numbers pool — Also called numbers, numbers game, numbers racket. an illegal daily lottery in which money is wagered on the appearance of certain numbers in some statistical listing or tabulation published in a daily newspaper, racing form, etc.
  • numerologist — A practitioner of numerology.
  • numerousness — very many; being or existing in great quantity: numerous visits; numerous fish.
  • nurserywoman — a woman who owns or operates a plant nursery.
  • nurserywomen — Plural form of nurserywoman.
  • nursing home — a private residential institution equipped to care for persons unable to look after themselves, as the aged or chronically ill.
  • nutritionist — a person who is trained or expert in the science of nutrition.
  • nutritiously — In a way that provides nutrition; nourishment; food.
  • oamaru stone — a kind of limestone, of building quality, found at Oamaru on South Island, New Zealand
  • obdurateness — The characteristic of being obdurate; stubbornness.
  • obreptitious — having the characteristics of acquiring something by deceitful means
  • obscurantism — opposition to the increase and spread of knowledge.
  • obscurantist — opposition to the increase and spread of knowledge.
  • obscurations — Plural form of obscuration.
  • obstreperous — resisting control or restraint in a difficult manner; unruly.
  • obstructions — Plural form of obstruction.
  • occurs check — (programming)   A feature of some implementations of unification which causes unification of a logic variable V and a structure S to fail if S contains V. Binding a variable to a structure containing that variable results in a cyclic structure which may subsequently cause unification to loop forever. Some implementations use extra pointer comparisons to avoid this. Most implementations of Prolog do not perform the occurs check for reasons of efficiency. Without occurs check the complexity of unification is O(min(size(term1), size(term2))) with occurs check it's O(max(size(term1), size(term2))) In theorem proving unification without the occurs check can lead to unsound inference. For example, in Prolog it is quite valid to write X = f(X). which will succeed, binding X to a cyclic structure. Clearly however, if f is taken to stand for a function rather than a constructor, then the above equality is only valid if f is the identity function. Weijland calls unification without occur check, "complete unification". The reference below describes a complete unification algorithm in terms of Colmerauer's consistency algorithm.
  • ochroleucous — having an off-white colour or a white colour tinted with yellow
  • odd-man rush — an attacking move when the defence is outnumbered by the opposing team
  • office hours — hours when a business is open
  • offscourings — Often, offscourings. something scoured off; filth; refuse.
  • oil industry — petroleum-processing business
  • oil pressure — force that keeps engine lubricated
  • old guardism — political conservatism.
  • old prussian — a Baltic language extinct since the 17th century. Abbreviation: OPruss.
  • oleoresinous — pertaining to, characteristic of, or containing oleoresin.
  • ombrophilous — (of plants) tolerant of wet conditions
  • ombrophobous — (of plants) not able to tolerate wet conditions
  • ombudsperson — ombudsman (def 2).
  • omnivorously — eating both animal and plant foods.
  • on all fours — all four limbs or extremities; the four legs or feet of an animal or both arms and both legs or both hands and both feet of a person: The cat rolled off the ledge but landed on all fours.
  • on your side — If something is on your side or if you have it on your side, it helps you when you are trying to achieve something.
  • oncornavirus — any of various RNA viruses that cause tumors in humans and other animals.
  • open cluster — a comparatively young, irregularly shaped group of stars, often numbering up to several hundred, and held together by mutual gravitation; usually found along the central plane of the Milky Way and other galaxies.
  • ophiolatrous — of, relating to, or practising snake-worshipping
  • opportunists — Plural form of opportunist.
  • oracularness — the state of being oracular
  • oral surgery — the branch of dentistry or of surgery dealing with the surgical treatment or repair of various conditions of the mouth or jaws.
  • orchard bush — open savanna country with occasional trees and scrub, as found north of the W African forest belt
  • orchidaceous — belonging to the plant family Orchidaceae.
  • oreopithecus — a genus of fossil primate from the Miocene coal deposits of Italy, formerly considered to be a possible hominid.
  • orichalceous — relating to or resembling orichalc
  • ortho-cousin — parallel cousin.
  • orthocousins — the children of two brothers or two sisters
  • orthopterous — belonging or pertaining to the Orthoptera, an order of insects, including the cockroaches, mantids, walking sticks, crickets, grasshoppers, and katydids, characterized by leathery forewings, membranous hind wings, and chewing mouthparts.
  • orthotropous — Botany. (of an ovule) straight and symmetrical, with the chalaza at the evident base and the micropyle at the opposite extremity.
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