15-letter words containing s, p, i, r, a, n
- preregistration — early registration, in advance of event or general registration
- presbyterianism — church government by presbyters or elders, equal in rank and organized into graded administrative courts.
- presbyterianize — to convert or be converted into Presbyterianism
- 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.
- presidents' day — the third Monday in February, a legal holiday in the U.S., commemorating the birthdays of George Washington and Abraham Lincoln.
- presynaptically — in a presynaptic manner
- primary insurer — A primary insurer is the insurance company that first sells insurance to a client, who later purchases reinsurance.
- primary sealing — Primary sealing is devices used for sealing tanks, to reduce emissions, often made of foam.
- prince of wales — Prince of Wales and Duke of Cornwall ("The Black Prince") 1330–76, English military leader (son of Edward III).
- prince's island — former name of Príncipe.
- principal focus — focal point (def 1).
- principal parts — a set of inflected forms of a form class from which all the other inflected forms can be derived, as sing, sang, sung; smoke, smoked.
- prior restraint — a court order banning publication of unpublished material.
- prism binocular — Usually, prism binoculars. Optics. binocular (def 1).
- prisoner of war — a person who is captured and held by an enemy during war, especially a member of the armed forces. Abbreviation: POW.
- prisoner's base — any of various children's games in which each of two teams has a home base where members of the opposing team are kept prisoner after being tagged or caught and from which they can be freed only in specified ways.
- 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
- professionalism — professional character, spirit, or methods.
- professionalist — to give a professional character or status to; make into or establish as a profession.
- professionalize — 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.
- proscenium arch — the arch separating the stage from the auditorium
- pseudepigraphon — any book of the Pseudepigrapha
- pseudo-romantic — of, relating to, or of the nature of romance; characteristic or suggestive of the world of romance: a romantic adventure.
- psion organiser — (computer) A popular pocket computer from the UK Company Psion plc. The organiser uses a graphical user interface with windows, menus, icons and dialog boxes. There have been several versions so far: Series3a, Series3, HC, MC, OrgII.
- psychohistorian — a person who writes psychohistory
- pure and simple — sheer, utter
- purslane family — the plant family Portulacaceae, characterized by chiefly herbaceous plants having simple, often fleshy leaves, sometimes showy flowers, and capsular fruit, and including bitterroot, purslane, red maids, rose moss, and spring beauty.
- pyramid selling — Pyramid selling is a method of selling in which one person buys a supply of a particular product direct from the manufacturer and then sells it to a number of other people at an increased price. These people sell it on to others in a similar way, but eventually the final buyers are only able to sell the product for less than they paid for it.
- pyrimidine base — any of a number of similar compounds having a basic structure that is derived from pyrimidine, including cytosine, thymine, and uracil, which are constituents of nucleic acids
- pyrocrystalline — crystallized from a molten magma or highly heated solution.
- quasi-permanent — existing perpetually; everlasting, especially without significant change.
- query expansion — (information science) Adding search terms to a user's search. Query expansion is the process of a search engine adding search terms to a user's weighted search. The intent is to improve precision and/or recall. The additional terms may be taken from a thesaurus. For example a search for "car" may be expanded to: car cars auto autos automobile automobiles. The additional terms may also be taken from documents that the user has specified as being relevant; this is the basis for the "more like this" feature of some search engines. The extra terms can have positive or negative weights.
- random sampling — a method of selecting a sample (random sample) from a statistical population in such a way that every possible sample that could be selected has a predetermined probability of being selected.
- range paralysis — Marek's disease.
- re-presentation — the act of representing.