12-letter words containing p, a, c, t, o
- pilot jacket — a type of leather jacket associated with U.S. Army pilots in World War II
- pinealectomy — a surgical operation to remove the pineal gland
- pipe tobacco — tobacco suitable for use in a tobacco pipe
- 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.
- placentation — Anatomy, Zoology. the formation of a placenta. the manner of placement or construction of a placenta.
- placentiform — shaped like a placenta, with a flat rounded form
- placentology — the scientific study of the placenta
- plagiotropic — growing more or less divergent from the vertical.
- plainclothes — Plainclothes police officers wear ordinary clothes instead of a police uniform.
- plasma torch — an electrical device for converting a gas into a plasma, used for melting metal
- 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.
- plastocyanin — a blue protein found in green plants and in some bacteria
- platanaceous — relating to the family Platanaceae
- platform car — a railroad freight car having no enclosing sides or top; a flatcar.
- platonically — of, relating to, or characteristic of Plato or his doctrines: the Platonic philosophy of ideal forms.
- play clothes — clothes that are suitable for playing in
- play it cool — If you play it cool, you deliberately behave in a calm, unemotional way because you do not want people to know you are enthusiastic or angry about something.
- play it cozy — to act cautiously so as to avoid risk
- pneumatocyst — the cavity of a pneumatophore.
- poeticalness — the characteristic of being poetical
- 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.
- 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.
- politicalize — to cause to be political; color with politics.
- 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.
- polychaetous — of or relating to the genus Polychaeta
- polycythemia — an abnormal increase in the number and concentration of circulating red blood corpuscles
- polygamistic — a person who practices or favors polygamy.
- polynucleate — having many nuclei.
- polysynaptic — having or involving more than one synapse.
- pontificates — the office or term of office of a pontiff.
- pontificator — the office or term of office of a pontiff.
- popocatepetl — a volcano in S central Mexico, SE of Mexico City. 17,887 feet (5450 meters).
- 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 captain — (formerly) a naval officer holding a commission as a captain, as distinct from an officer with the courtesy title of captain
- post-fascist — of or relating to various right-wing political parties in Europe which espouse a modified form of fascism and which take part in constitutional politics
- post-glacial — after a given glacial epoch, especially the Pleistocene.
- post-nuclear — pertaining to or involving atomic weapons: nuclear war.
- postaccident — occurring after an accident
- 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.
- postcardlike — (of a scene) resembling a postcard