12-letter words containing s, o, p, y
- pityrosporum — a genus of fungi that live on the skin, esp that of the scalp and face, present in conditions such as dandruff and dermatitis
- plastocyanin — a blue protein found in green plants and in some bacteria
- play clothes — clothes that are suitable for playing in
- pneumatocyst — the cavity of a pneumatophore.
- pneumocystis — any protozoan of the genus Pneumocystis, esp P. carinii, which is a cause of pneumonia in people whose immune defences have been lowered by drugs or a disease
- point system — Printing. a system for grading the sizes of type bodies, leads, etc., that employs the point as a unit of measurement. Compare point (def 48a).
- policymakers — a person responsible for making policy, especially in government.
- pollyannaish — an excessively or blindly optimistic person.
- pollyannaism — an excessively or blindly optimistic person.
- polycentrism — the doctrine that a plurality of independent centers of leadership, power, or ideology may exist within a single political system, especially Communism.
- polychaetous — of or relating to the genus Polychaeta
- polydisperse — of or noting a sol that contains particles of different sizes.
- polygamistic — a person who practices or favors polygamy.
- polyglottous — characterized by being multilingual
- polygraphist — an instrument for receiving and recording simultaneously tracings of variations in certain body activities.
- polyhedrosis — an often fatal disease of certain insect larvae or decapod crustaceans, caused by viruses containing DNA.
- polyhistoric — relating to a polyhistor
- polyisoprene — a thermoplastic polymer, (C 5 H 8) n , the major constituent of natural rubber and also obtained synthetically.
- polymorphism — the state or condition of being polymorphous.
- polymorphous — having, assuming, or passing through many or various forms, stages, or the like.
- polymyositis — a disorder characterized by the inflammation of multiple muscles
- polyneuritis — inflammation of several nerves at the same time; multiple neuritis.
- polyoestrous — polyestrous.
- polyomavirus — any of a genus (Polyomavirus) of papovaviruses that naturally infect wild and laboratory mice, and that cause tumors when injected into newborn mice
- polypetalous — having a corolla of separate petals.
- polyphyllous — made up of multiple members or parts
- polyribosome — polysome.
- polysaprobic — flourishing in a body of water having a heavy load of decomposed organic matter and almost no free oxygen
- polysepalous — having a calyx of separate or unconnected sepals.
- polysiloxane — a polymer composed of silicon and oxygen atoms
- polystichous — arranged in rows or series.
- polysulphide — any sulphide of a metal containing divalent anions in which there are chains of sulphur atoms, as in the polysulphides of sodium, Na2S2, Na2S3, Na2S4, etc
- polysyllabic — consisting of several, especially four or more, syllables, as a word.
- polysyllable — a polysyllabic word.
- polysynaptic — having or involving more than one synapse.
- polysyndeton — the use of a number of conjunctions in close succession.
- polytheistic — pertaining to, characterized by, or adhering to polytheism, the doctrine that there is more than one god or many gods: Science thrived in the polytheistic culture of ancient Greece.
- pompholygous — characterized by pompholyx
- pony express — a former system in the American West of carrying mail and express by relays of riders mounted on ponies, especially the system operating (1860–61) between St. Joseph, Missouri, and Sacramento, California.
- porphyropsin — a purple pigment occurring in the retina of the eye of certain freshwater fishes
- port moresby — an independent republic in the W Pacific Ocean, comprising the E part of New Guinea and numerous near-lying islands, including the Bismarck Archipelago, the Admiralty Islands, the Trobriand Islands, and Bougainville and Buka in the Solomon Islands: a former Australian Trusteeship Territory; independent since 1975; member of the Commonwealth of Nations. 178,260 sq. mi. (461,693 sq. km). Capital: Port Moresby.
- portentously — of the nature of a portent; momentous.
- positionally — in terms of position, from a positional point of view
- possessed by — spurred or moved by a strong feeling, madness, or a supernatural power (often followed by by, of, or with): The army fought as if possessed. The village believed her to be possessed of the devil.
- possessively — jealously opposed to the personal independence of, or to any influence other than one's own upon, a child, spouse, etc.
- post-primary — first or highest in rank or importance; chief; principal: his primary goals in life.
- post-puberty — the period or age at which a person is first capable of sexual reproduction of offspring: in common law, presumed to be 14 years in the male and 12 years in the female.
- post-pyloric — the opening between the stomach and the duodenum.
- postcoronary — of, relating to, or occurring after a heart attack
- postdelivery — of, relating to, or occurring after a delivery