12-letter words containing o, s, m, l
- plumbaginous — containing graphite.
- plumbiferous — yielding or containing lead.
- plumulaceous — having the texture of down.
- pole compass — (formerly) a ship's compass elevated on a wooden pole to isolate it as much as possible from local magnetism.
- policymakers — a person responsible for making policy, especially in government.
- 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.
- polygamistic — a person who practices or favors polygamy.
- 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
- polyomavirus — any of a genus (Polyomavirus) of papovaviruses that naturally infect wild and laboratory mice, and that cause tumors when injected into newborn mice
- polyribosome — polysome.
- pommel horse — a padded, somewhat cylindrical floor-supported apparatus, similar to a vaulting horse but having two graspable pommels on top, used by men for hand-supported balancing, rotating, and swinging maneuvers.
- pomona glass — an American art glass having one of its surfaces stained a pale amber color and the other surface etched.
- pompholygous — characterized by pompholyx
- porismatical — porismatic
- postal meter — a postal franking machine
- posthumously — arising, occurring, or continuing after one's death: a posthumous award for bravery.
- postimperial — of, relating to, or designating the period after an empire
- postliminary — of or relating to postliminy
- postliminium — postliminy.
- postliminous — occurring after; subsequent
- postmedieval — occurring or existing after the Middle Ages, of or related to the period after the Middle Ages
- poststimulus — of, relating to, or occurring in the period following the administering of a stimulus
- potamologist — a specialist in potamology
- primulaceous — belonging to the plant family Primulaceae.
- problematics — problems or difficulties in a particular situation or subject
- promissorily — (in law) in a promissory way
- proper psalm — a psalm used only on a particular day or feast
- prosyllogism — a syllogism the conclusion of which is used as a premise of another syllogism; any of the syllogisms included in a polysyllogism except the last.
- protoplasmic — Biology. (no longer in technical use) the colloidal and liquid substance of which cells are formed, excluding horny, chitinous, and other structural material; the cytoplasm and nucleus.
- pseudocoelom — the body cavity of certain invertebrate metazoan animals between the body wall and the intestine, which is not lined with a mesodermal epithelium.
- psychologism — emphasis upon psychological factors in the development of a theory, as in history or philosophy.
- quasi-normal — conforming to the standard or the common type; usual; not abnormal; regular; natural.
- ragman rolls — Usually, ragman rolls. a series of documents in which the Scottish nobles acknowledged their allegiance to Edward I of England, 1291–92 and 1296.
- reform flask — an English salt-glazed stoneware flask of the early 19th century formed as an effigy of one of the figures connected with the Reform Bill of 1832.
- reg-symbolic — An early system on the IBM 704.
- rotflmaoastc — (chat) Rolling on the floor laughing my ass (or arse) off and scaring the cat. The superlative form of ROTFL.
- sal ammoniac — ammonium chloride.
- salamandroid — an amphibian of the genus Salamandra
- sales volume — quantity of goods sold
- salmon brick — a soft, imperfectly fired brick having a reddish-orange color.
- salmon steak — a thick slice of salmon
- salmon trout — a European trout, Salmo trutta.
- salpingotomy — incision of a Fallopian tube.
- saltationism — any of several theories holding that the evolution of species proceeds in major steps by the abrupt transformation of an ancestral species into a descendant species of a different type, rather than by the gradual accumulation of small changes.
- salutatorium — a porch or room in a monastery or church serving as a meeting or almsgiving place for monks or priests and the laity.
- sample point — a possible result of an experiment, represented as a point.
- samuel lover — Samuel, 1797–1868, Irish novelist, painter, and songwriter.