12-letter words containing s, p, o, i, l, a
- percussional — of or relating to percussion
- personalised — to have marked with one's initials, name, or monogram: to personalize stationery.
- personalized — customized
- pestological — relating to pestology
- petaliferous — bearing or having petals.
- phalaenopsis — any of various epiphytic orchids of the genus Phalaenopsis, native to tropical Asia, having clusters of showy, variously colored flowers.
- phosphatidyl — an atom or group of atoms containing one or more unpaired electrons derived from a phosphatide
- photoelastic — displaying photoelasticity; of or relating to photoelasticity
- photorealism — a style of painting flourishing in the 1970s, especially in the U.S., England, and France, and depicting commonplace scenes or ordinary people, with a meticulously detailed realism, flat images, and barely discernible brushwork that suggests and often is based on or incorporates an actual photograph.
- piano lesson — music class in playing the piano
- pictorialism — Fine Arts. the creation or use of pictures or visual images, especially of recognizable or realistic representations.
- pictorialist — Fine Arts. the creation or use of pictures or visual images, especially of recognizable or realistic representations.
- pilot signal — a signal, as a flag or light, used to request a pilot.
- plain-spoken — candid; frank; blunt.
- plainclothes — Plainclothes police officers wear ordinary clothes instead of a police uniform.
- plastic bomb — a bomb made of plastic explosive.
- plastic flow — deformation of a material that remains rigid under stresses of less than a certain intensity but that behaves under severer stresses approximately as a Newtonian fluid.
- plastic foam — expanded plastic.
- plastination — a technique for embalming bodies by impregnating whole organs with silicon polymers
- plastocyanin — a blue protein found in green plants and in some bacteria
- pleiochasium — a flowering system in which several buds come out at the same time
- plumbaginous — containing graphite.
- poeticalness — the characteristic of being poetical
- poison gland — a gland in some fish and amphibians that secretes venomous material
- polar lights — the aurora borealis in the Northern Hemisphere or the aurora australis in the Southern Hemisphere.
- polariscopic — relating to a polariscope
- police state — a nation in which the police, especially a secret police, summarily suppresses any social, economic, or political act that conflicts with governmental policy.
- policymakers — a person responsible for making policy, especially in government.
- polish wheat — a wheat, Triticum polonicum, grown chiefly in S Europe, N Africa, and Turkestan.
- politicaster — an ill-suited or disliked politician
- pollyannaish — an excessively or blindly optimistic person.
- pollyannaism — an excessively or blindly optimistic person.
- polygamistic — a person who practices or favors polygamy.
- polygraphist — an instrument for receiving and recording simultaneously tracings of variations in certain body activities.
- polyomavirus — any of a genus (Polyomavirus) of papovaviruses that naturally infect wild and laboratory mice, and that cause tumors when injected into newborn mice
- polysaprobic — flourishing in a body of water having a heavy load of decomposed organic matter and almost no free oxygen
- polysiloxane — a polymer composed of silicon and oxygen atoms
- polysyllabic — consisting of several, especially four or more, syllables, as a word.
- polysynaptic — having or involving more than one synapse.
- pons varolii — pons (def 1).
- porcelainous — made of or resembling porcelain
- porcellanise — to bake into porcelain
- porismatical — porismatic
- positionally — in terms of position, from a positional point of view
- positive law — customary law or law enacted by governmental authority (as distinguished from natural law).
- possessional — of, relating to, or characterized by possession
- post-glacial — after a given glacial epoch, especially the Pleistocene.
- postal union — an international agreement on postal rates and services.
- postbiblical — occurring after the events written about in the Bible, occurring after the Bible was written
- postbrachial — belonging to the arm, foreleg, wing, pectoral fin, or other forelimb of a vertebrate.