12-letter words containing c, o, r, e, s, u
- 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
- office hours — hours when a business is open
- 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.
- oracularness — the state of being oracular
- 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
- outstretched — to stretch forth; extend: to outstretch one's hand in welcome.
- overcautious — excessively or unnecessarily cautious: Sometimes it doesn't pay to be overcautious in business.
- overconsumed — Simple past tense and past participle of overconsume.
- overdiscount — to discount excessively
- overfocussed — too focussed
- overissuance — the act of issuing in excessive amounts
- overpurchase — to acquire by the payment of money or its equivalent; buy.
- overscutched — overworked; worn out
- oyster sauce — thick oyster-flavoured Asian relish
- pachydermous — any of the thick-skinned, nonruminant ungulates, as the elephant, hippopotamus, and rhinoceros.
- percussional — of or relating to percussion
- percutaneous — administered, removed, or absorbed by way of the skin, as an injection, needle biopsy, or transdermal drug.
- periostracum — the external, chitinlike covering of the shell of certain mollusks that protects the limy portion from acids.
- peritrichous — (of bacteria) having a uniform distribution of flagella over the body surface.
- perniciously — causing insidious harm or ruin; ruinous; injurious; hurtful: pernicious teachings; a pernicious lie.
- pertinacious — holding tenaciously to a purpose, course of action, or opinion; resolute.
- pervicacious — extremely willful; obstinate; stubborn.
- picture show — motion picture.
- plecopterous — relating to the order Plecoptera or stoneflies
- point source — a source of radiation sufficiently distant compared to its length and width that it can be considered as a point.
- porcelainous — made of or resembling porcelain
- porcelaneous — a strong, vitreous, translucent ceramic material, biscuit-fired at a low temperature, the glaze then fired at a very high temperature.
- post-nuclear — pertaining to or involving atomic weapons: nuclear war.
- postconsumer — noting or pertaining to a product after it has been used and recycled: a chair made of postconsumer plastic.
- postfracture — taking place after a fracture
- pre-discount — to deduct a certain amount from (a bill, charge, etc.): All bills that are paid promptly will be discounted at two percent.
- precancerous — showing pathological changes that may be preliminary to malignancy.
- precariously — dependent on circumstances beyond one's control; uncertain; unstable; insecure: a precarious livelihood.
- preciousness — of high price or great value; very valuable or costly: precious metals.
- precociously — unusually advanced or mature in development, especially mental development: a precocious child.
- preconscious — Psychoanalysis. absent from but capable of being readily brought into consciousness.
- preconstruct — to construct beforehand
- prediscourse — communication of thought by words; talk; conversation: earnest and intelligent discourse.
- primulaceous — belonging to the plant family Primulaceae.
- proconsulate — the office or term of office of a proconsul.
- producer gas — a mixture of carbon monoxide and nitrogen produced by passing air over hot coke, used mainly as a fuel
- promuscidate — shaped like a proboscis
- prosecutable — Law. to institute legal proceedings against (a person). to seek to enforce or obtain by legal process. to conduct criminal proceedings in court against.
- pseudo force — any force that is postulated to account for apparent deviations from Newton's laws of motion appearing in an accelerated reference system.
- pseudocereal — any of several plants, as buckwheat and quinoa, that produce fruits and seeds used as flour but are not of the grass family.
- pseudoscalar — a scalar quantity that changes sign when the sense of the orientation of the coordinate system is changed.
- pseudovector — a variable quantity, such as angular momentum, that has magnitude and orientation with respect to an axis. The components are even functions of the coordinates