15-letter words containing r, a, t, l, e
- predeterminable — able to be predetermined; able to be determined in advance
- predicate logic — (logic) (Or "predicate calculus") An extension of propositional logic with separate symbols for predicates, subjects, and quantifiers. For example, where propositional logic might assign a single symbol P to the proposition "All men are mortal", predicate logic can define the predicate M(x) which asserts that the subject, x, is mortal and bind x with the universal quantifier ("For all"): All x . M(x) Higher-order predicate logic allows predicates to be the subjects of other predicates.
- preequalization — preemphasis.
- preferentialism — the economic system of preference, esp amongst British commonwealth countries
- preferentialist — someone who believes in preferentialism
- preimplantation — relating to the period before implantation in the uterus
- prelate nullius — a prelate having independent jurisdiction over a district not under a diocesan bishop.
- prepresidential — describing the period before a person's rise to presidency
- presynaptically — in a presynaptic manner
- preternaturally — out of the ordinary course of nature; exceptional or abnormal: preternatural powers.
- price inflation — inflation fuelled by rising prices
- prismatic layer — the middle layer of the shell of certain mollusks, consisting chiefly of crystals of calcium carbonate.
- prittle-prattle — foolish or idle talk; babble
- private soldier — A private soldier is a soldier of the lowest rank in an army or the marines.
- privately owned — owned by a private individual or organization, rather than by the state or a public body
- problematically — of the nature of a problem; doubtful; uncertain; questionable.
- processionalist — a member of a procession
- professionalist — to give a professional character or status to; make into or establish as a profession.
- proletarianized — to convert or transform into a member or members of the proletariat: to proletarianize the middle class.
- proletarization — to proletarianize.
- propeller shaft — a shaft that transmits power from an engine to a propeller.
- property ladder — progress from cheaper to more expensive housing
- proportionately — proportioned; being in due proportion; proportional.
- proprietorially — in the manner of a proprietor
- proteolytically — by a proteolytic process
- pseudo-critical — inclined to find fault or to judge with severity, often too readily.
- pseudo-military — of, for, or pertaining to the army or armed forces, often as distinguished from the navy: from civilian to military life.
- pseudotripteral — having an arrangement of columns suggesting a tripteral structure but without the inner colonnades.
- puerto vallarta — a city in W Mexico.
- pulmobranchiate — possessing a pulmobranch
- pure land sects — Mahayana Buddhist sects venerating the Buddha as the compassionate saviour
- pyrocrystalline — crystallized from a molten magma or highly heated solution.
- pyrotechnically — in a pyrotechnical manner
- quarantine flag — a yellow flag, designating the letter Q in the International Code of Signals: flown by itself to signify that a ship has no disease on board and requests a pratique, or flown with another flag to signify that there is disease on board ship.
- quarter blanket — a horse blanket, usually placed under a saddle or harness and extending to the horse's tail.
- quarterfinalist — a participant in a quarterfinal contest.
- radar telescope — (in radar astronomy) a very large radar antenna used to study planetary bodies in the solar system.
- radial symmetry — a basic body plan in which the organism can be divided into similar halves by passing a plane at any angle along a central axis, characteristic of sessile and bottom-dwelling animals, as the sea anemone and starfish.
- radial velocity — the component of the motion of a star away from or toward the earth along its line of sight, expressed in miles or kilometers per second and determined by the shift in the wavelength of light emitted by the star.
- radiator grille — a grille in an automobile or the like for air cooling of the liquid in the cooling system.
- radio telephone — A radio telephone is a telephone which carries sound by sending radio signals rather than by using wires. Radio telephones are often used in cars.
- radio telescope — a system consisting of an antenna, either parabolic or dipolar, used to gather radio waves emitted by celestial sources and bring them to a receiver placed in the focus.
- radio-telephone — a telephone in which sound or speech is transmitted by means of radio waves instead of through wires or cables.
- radiometrically — using a radiometric method, in terms of radiometry
- radiotechnology — the technical application of any form of radiation to industry.
- radiotelegraphy — the constructing or operating of radiotelegraphs.
- radiotelemetric — of or relating to radiotelemetry
- railway network — a system of intersecting rail routes
- raise the devil — Theology. (sometimes initial capital letter) the supreme spirit of evil; Satan. a subordinate evil spirit at enmity with God, and having power to afflict humans both with bodily disease and with spiritual corruption.
- rational number — a number that can be expressed exactly by a ratio of two integers.