15-letter words containing a, o, r, t, i, s
- preformationism — the belief in the theory of preformation
- preformationist — someone who advocates the theory of preformation
- preregistration — early registration, in advance of event or general registration
- presentationism — the doctrine that in perception, or in all forms of knowledge, there is an immediate awareness of the things perceived.
- preservationism — a person who advocates or promotes preservation, especially of wildlife, natural areas, or historical places.
- preservationist — a person who advocates or promotes preservation, especially of wildlife, natural areas, or historical places.
- prestidigitator — sleight of hand; legerdemain.
- primary storage — main memory
- prior restraint — a court order banning publication of unpublished material.
- private soldier — A private soldier is a soldier of the lowest rank in an army or the marines.
- pro-abortionist — pro-choice.
- pro-nationalist — a person devoted to nationalism.
- probationership — the position of a probationer
- process heating — Process heating is heating, usually from steam, which is used to increase the temperature in a process vessel.
- processionalist — a member of a procession
- procrastinating — to defer action; delay: to procrastinate until an opportunity is lost.
- procrastination — the act or habit of procrastinating, or putting off or delaying, especially something requiring immediate attention: She was smart, but her constant procrastination led her to be late with almost every assignment.
- procrastinative — to defer action; delay: to procrastinate until an opportunity is lost.
- procrastinatory — to defer action; delay: to procrastinate until an opportunity is lost.
- procreativeness — the quality of being procreative
- professionalist — to give a professional character or status to; make into or establish as a profession.
- profit and loss — the gain and loss arising from commercial or other transactions, applied especially to an account or statement of account in bookkeeping showing gains and losses in business.
- prognostication — the act of prognosticating.
- prognosticators — to forecast or predict (something future) from present indications or signs; prophesy.
- propositionally — the act of offering or suggesting something to be considered, accepted, adopted, or done.
- protospatharius — (of the Byzantine empire) a high-ranking official in the imperial guard
- proximity talks — a diplomatic process whereby an impartial representative acts as go-between for two opposing parties who are willing to attend the same conference but unwilling to meet face to face
- pseudo-artistic — conforming to the standards of art; satisfying aesthetic requirements: artistic productions.
- pseudo-critical — inclined to find fault or to judge with severity, often too readily.
- pseudo-dramatic — of or relating to the drama.
- pseudo-military — of, for, or pertaining to the army or armed forces, often as distinguished from the navy: from civilian to military life.
- pseudo-romantic — of, relating to, or of the nature of romance; characteristic or suggestive of the world of romance: a romantic adventure.
- pseudoarthrosis — a joint formed by fibrous tissue bridging the gap between the two fragments of bone of an old fracture that have not united
- pseudotripteral — having an arrangement of columns suggesting a tripteral structure but without the inner colonnades.
- psychogeriatric — the psychology of old age.
- psychohistorian — a person who writes psychohistory
- psychotherapist — the treatment of psychological disorders or maladjustments by a professional technique, as psychoanalysis, group therapy, or behavioral therapy.
- pyrocrystalline — crystallized from a molten magma or highly heated solution.
- quarter section — (in surveying and homesteading) a square tract of land, half a mile on each side, thus containing ¼ sq. mi. or 160 acres. Abbreviation: q.s.
- quasihistorical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- question master — quizmaster.
- quotation marks — one of the marks used to indicate the beginning and end of a quotation, in English usually shown as “ at the beginning and ” at the end, or, for a quotation within a quotation, of single marks of this kind, as “He said, ‘I will go.’ ” Frequently, especially in Great Britain, single marks are used instead of double, the latter being then used for a quotation within a quotation.
- radio astronomy — the branch of astronomy that utilizes extraterrestrial radiation in radio wavelengths rather than visible light for the study of the universe.
- radio broadcast — sth transmitted via radio signal
- 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.
- radiosensitizer — a substance, as a drug, that enhances the sensitivity of tissues or cells to radiation therapy.
- railway station — train stop, railroad station
- raise one's hat — to take one's hat briefly off one's head as a greeting or mark of respect
- ramrod straight — having a very straight figure
- re-presentation — the act of representing.