12-letter words containing y, o, s
- phenocrystic — relating to a phenocryst
- phosphatidyl — an atom or group of atoms containing one or more unpaired electrons derived from a phosphatide
- photoanalyst — a person who analyzes and interprets photographs, especially a military specialist in aerial or satellite photography.
- phototypeset — to set (type matter) by phototypesetting
- phrontistery — a place or establishment for thinking, studying, or learning
- phycologists — the branch of botany dealing with algae.
- phylogenesis — the development or evolution of a particular group of organisms.
- physiognomic — the face or countenance, especially when considered as an index to the character: a fierce physiognomy.
- physiography — the science of physical geography.
- physiologies — the branch of biology dealing with the functions and activities of living organisms and their parts, including all physical and chemical processes.
- physiologist — a specialist in physiology.
- physogastric — pertaining to the swollen, membranous abdomen of certain insects, especially termite and ant queens.
- physostomous — having the mouth and air bladder connected by an air duct.
- phytobenthos — microscopic plants that live in the bottom of the ocean
- phytogenesis — the origin and development of plants.
- phytophagous — herbivorous.
- 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.