12-letter words containing p, r, o, s, c, e
- open cluster — a comparatively young, irregularly shaped group of stars, often numbering up to several hundred, and held together by mutual gravitation; usually found along the central plane of the Milky Way and other galaxies.
- oreopithecus — a genus of fossil primate from the Miocene coal deposits of Italy, formerly considered to be a possible hominid.
- orthopaedics — (used with a singular verb) the medical specialty concerned with correction of deformities or functional impairments of the skeletal system, especially the extremities and the spine, and associated structures, as muscles and ligaments.
- osmoreceptor — A sensory receptor, primarily found in the hypothalamus of most homeothermic organisms, that detects changes in osmotic pressure.
- osteoporotic — of, relating to, or caused by osteoporosis.
- over-precise — definitely or strictly stated, defined, or fixed: precise directions.
- overcompress — to compress, squeeze or condense excessively
- overpurchase — to acquire by the payment of money or its equivalent; buy.
- overseas cap — a soft, brimless military cap
- pachydermous — any of the thick-skinned, nonruminant ungulates, as the elephant, hippopotamus, and rhinoceros.
- pacific rose — a large variety of eating apple from New Zealand, with sweet flesh
- parochialise — to make parochial.
- pasch flower — pasqueflower
- percussional — of or relating to percussion
- percutaneous — administered, removed, or absorbed by way of the skin, as an injection, needle biopsy, or transdermal drug.
- perichoresis — the relationship between or interlinking of the three Persons of the Trinity (Father, Son, and Holy Spirit)
- period costs — Period costs are general costs that cannot be associated with a particular product, such as utilities or insurance.
- periodontics — the branch of dentistry dealing with the study and treatment of diseases of the periodontium.
- periostracum — the external, chitinlike covering of the shell of certain mollusks that protects the limy portion from acids.
- peristeronic — of, pertaining to, or resembling pigeons
- peristomatic — surrounding a leaf's stoma or stomata
- peritrichous — (of bacteria) having a uniform distribution of flagella over the body surface.
- perniciously — causing insidious harm or ruin; ruinous; injurious; hurtful: pernicious teachings; a pernicious lie.
- pertinacious — holding tenaciously to a purpose, course of action, or opinion; resolute.
- pervicacious — extremely willful; obstinate; stubborn.
- pest control — rats, insects: extermination
- petrochemist — someone who studies petrochemistry or works in the petrochemical industry
- petrophysics — the analysis of the constitution and characteristics of rocks
- phenocrystic — relating to a phenocryst
- phosphoresce — to be luminous without sensible heat, as phosphorus.
- picture show — motion picture.
- pirate coast — an independent federation in E Arabia, formed in 1971, now comprising seven emirates on the S coast (formerly, Pirate Coast or Trucial Coast) of the Persian Gulf, formerly under British protection: Abu Dhabi, Dubai, Sharjah, Ajman, Umm al-Qaiwain, Ras al-Khaimah (joined 1972), and Fujairah. About 32,300 sq. mi. (83,657 sq. km). Capital: Abu Dhabi. Abbreviation: U.A.E.
- plecopterous — relating to the order Plecoptera or stoneflies
- point source — a source of radiation sufficiently distant compared to its length and width that it can be considered as a point.
- policeperson — a member of a police force.
- policymakers — a person responsible for making policy, especially in government.
- poliorcetics — the science of siegecraft
- politicaster — an ill-suited or disliked politician
- polycentrism — the doctrine that a plurality of independent centers of leadership, power, or ideology may exist within a single political system, especially Communism.
- porcelainous — made of or resembling porcelain
- porcelaneous — a strong, vitreous, translucent ceramic material, biscuit-fired at a low temperature, the glaze then fired at a very high temperature.
- porcellanise — to bake into porcelain
- port chester — a city in SE New York, on Long Island Sound.
- post-nuclear — pertaining to or involving atomic weapons: nuclear war.
- postcardlike — (of a scene) resembling a postcard
- postcardware — Shareware that borders on freeware, in that the author requests only that satisfied users send a postcard of their home town or something. (This practice, silly as it might seem, serves to remind users that they are otherwise getting something for nothing, and may also be psychologically related to real estate "sales" in which $1 changes hands just to keep the transaction from being a gift.)
- postconsumer — noting or pertaining to a product after it has been used and recycled: a chair made of postconsumer plastic.
- poster child — a child appearing on a poster for a charitable organization.
- poster color — poster paint.
- postexercise — bodily or mental exertion, especially for the sake of training or improvement of health: Walking is good exercise.