12-letter words containing c, a, t, r, o
- periostracum — the external, chitinlike covering of the shell of certain mollusks that protects the limy portion from acids.
- peristomatic — surrounding a leaf's stoma or stomata
- pernoctation — the act of staying all night in a place, esp for prayer or as a vigil
- pertinacious — holding tenaciously to a purpose, course of action, or opinion; resolute.
- petrifaction — the act or process of petrifying; the state of being petrified.
- phallocratic — relating to a male, or the beliefs assumed by such, who assumes authority over females due to his maleness
- pharmacolite — hydrous calcium arsenate, 2CaO⋅As 2 O 5 ⋅5H 2 O, formed by natural alteration of mineral deposits containing arsenopyrite and arsenical ores of cobalt and silver.
- photographic — of or relating to photography.
- photonuclear — of, relating to, or caused by the collision of high-energy photons with the nucleus of an atom.
- physogastric — pertaining to the swollen, membranous abdomen of certain insects, especially termite and ant queens.
- pictographic — a pictorial sign or symbol.
- 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.
- pictorialize — to make pictorial; illustrate or represent with or as if with pictures.
- 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.
- placentiform — shaped like a placenta, with a flat rounded form
- plagiotropic — growing more or less divergent from the vertical.
- plasma torch — an electrical device for converting a gas into a plasma, used for melting metal
- platform car — a railroad freight car having no enclosing sides or top; a flatcar.
- point charge — an electric charge considered to exist at a single point, and thus having neither area nor volume.
- pointed arch — an arch having a pointed apex.
- politicaster — an ill-suited or disliked politician
- poll watcher — a representative of a political party or of an organization running a candidate who is assigned to the polls on an election day to watch for violations of the laws that regulate voting, campaigning, etc.
- pontificator — the office or term of office of a pontiff.
- porcelainite — Mineralogy. mullite.
- porcellanite — hard and dense rock resembling unglazed porcelain
- porismatical — porismatic
- port captain — an official in charge of the harbor activities of a seaport.
- port jackson — an inlet of the Pacific in SE Australia: the harbor of Sydney.
- port of call — a port visited briefly by a ship, usually to take on or discharge passengers and cargo or to undergo repairs.
- post-nuclear — pertaining to or involving atomic weapons: nuclear war.
- postbrachial — belonging to the arm, foreleg, wing, pectoral fin, or other forelimb of a vertebrate.
- 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.)
- postcoronary — of, relating to, or occurring after a heart attack
- postdoctoral — of or relating to study or professional work undertaken after the receipt of a doctorate: postdoctoral courses.
- postfracture — taking place after a fracture
- postorgasmic — of or relating to the period after an orgasm
- postromantic — of or relating to the period after Romanticism
- postsurgical — pertaining to or involving surgery or surgeons.
- potato crisp — potato chip.
- power factor — (in an electrical circuit) the ratio of the power dissipated to the product of the input volts times amps
- practitioner — a person engaged in the practice of a profession, occupation, etc.: a medical practitioner.
- pratincolous — living in a meadow.
- pre-contract — a preexisting contract that legally prevents a person from making another contract of the same nature.
- pre-creation — the act of producing or causing to exist; the act of creating; engendering.
- pre-socratic — of or relating to the philosophers or philosophical systems of the period before the Socratic period.
- precipitator — to hasten the occurrence of; bring about prematurely, hastily, or suddenly: to precipitate an international crisis.
- precognizant — having prior cognizance or knowledge of a given thing
- prefectorial — of, relating to, or characteristic of a prefect: prefectorial powers.