15-letter words containing a, o, r, i, s
- pithecanthropus — a former genus of extinct hominids whose members have now been assigned to the proposed species Homo erectus.
- plain of sharon — a plain in W Israel, between the Mediterranean and the hills of Samaria, extending from Haifa to Tel Aviv
- plastic surgeon — doctor who performs cosmetic surgery
- platform tennis — a variation of tennis played on a wooden platform enclosed with chicken wire in which the players hit a rubber ball with wooden paddles following the same basic rules as tennis except that only one serve is permitted and balls can be played off the back and side fences.
- play favourites — to display favouritism
- pleasure-loving — enjoying pleasure
- poisson's ratio — the ratio, in an elastic body under longitudinal stress, of the transverse strain to the longitudinal strain.
- police marksman — a police officer skilled in precision shooting, esp with a sniper rifle
- polycrystalline — (of a rock or metal) composed of aggregates of individual crystals.
- pontine marshes — an area of W Italy, southeast of Rome: formerly malarial swamps, drained in 1932–34 after numerous attempts since 160 bc had failed
- port washington — a town on NW Long Island, in SE New York.
- port wine stain — a large birthmark of purplish color, usually on the face or neck.
- port-wine stain — a large birthmark of purplish color, usually on the face or neck.
- positive caster — a person or thing that casts.
- post-industrial — of, relating to, or characteristic of an era following industrialization: The economy of the postindustrial society is based on the provision of services rather than on the manufacture of goods.
- post-liberation — the act of liberating or the state of being liberated.
- post-parturient — bearing or about to bear young; travailing.
- posthemorrhagic — occurring after a haemorrhage
- postirradiation — occurring after or due to irradiation
- postoperatively — occurring after a surgical operation.
- poststimulatory — following stimulation
- posttransfusion — occurring after or as a result of a transfusion
- power macintosh — Power Mac
- prairie oysters — a raw egg, or the yolk of a raw egg, often mixed with seasonings, as salt, pepper, Worcestershire sauce, and used as a hangover remedy.
- pre-acquisition — the act of acquiring or gaining possession: the acquisition of real estate.
- pre-romanticism — romantic spirit or tendency.
- preformationism — the belief in the theory of preformation
- preformationist — someone who advocates the theory of preformation
- preprofessional — of or relating to the time preceding one's concentrated study or practice of a profession: preprofessional training.
- 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 process — the generally unorganized mental activity characteristic of the unconscious and occurring in dreams, fantasies, and related processes.
- primary storage — main memory
- primordial soup — the seas and atmosphere as they existed on earth before the existence of life, consisting primarily of an oxygen-free gaseous mixture containing chiefly water, hydrogen, methane, ammonia, and carbon dioxide.
- primrose family — the plant family Primulaceae, characterized by herbaceous plants having simple, opposite, whorled, or basal leaves, flowers with a five-lobed corolla, and capsular fruit, and including cyclamen, loosestrife of the genus Lysimachia, pimpernel, primrose, and shooting star.
- prince of wales — Prince of Wales and Duke of Cornwall ("The Black Prince") 1330–76, English military leader (son of Edward III).
- principal focus — focal point (def 1).
- 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.
- 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