12-letter words containing a, p, t, e, r
- pseudomartyr — someone falsely or inaccurately called a martyr
- psi particle — any of a family of mesons consisting of a charmed quark and a charmed antiquark.
- pteridomania — an excessive enthusiasm for ferns
- pterocarpous — having winged fruit.
- pteroic acid — a crystalline acid found in spinach
- pterosaurian — a pterosaur
- puerto rican — an island in the central West Indies: a commonwealth associated with the U.S. 3435 sq. mi. (8895 sq. km). Capital: San Juan. Abbreviation: P.R., PR.
- pulp plaster — plaster containing shredded wood fiber.
- punta arenas — a seaport in S Chile, on the Strait of Magellan: the southernmost city in Chile. Formerly Magallanes.
- purchase tax — a sales tax on nonessential and luxury goods.
- pure-hearted — (of a person) without malice, treachery, or evil intent; honest; sincere; guileless.
- purlin plate — (in a curb roof) a purlin at the top of a lower slope supporting the ends of the upper rafters at the curb.
- purple heart — a medal awarded for wounds received in action against an enemy or as a direct result of an act of the enemy.
- purple patch — If someone, especially a sports player or team, goes through a purple patch, they are very successful or lucky for a period.
- purple state — a state of the U.S. in which the Democratic and Republican candidates both have a good chance of winning and that is considered key to the outcome of a presidential election: the swing states of Ohio and Indiana.
- put years on — to make (someone) feel or look much older
- putrefaction — the act or process of putrefying; the anaerobic decomposition of organic matter by bacteria and fungi that results in obnoxiously odorous products; rotting.
- putrefactive — the act or process of putrefying; the anaerobic decomposition of organic matter by bacteria and fungi that results in obnoxiously odorous products; rotting.
- pyrithiamine — an antivitamin that causes thiamine deficiency
- pyritohedral — of or relating to a pyritohedron
- pyrocatechol — catechol.
- pyromagnetic — (formerly) thermomagnetic (def 1).
- pyrosulphate — any salt of pyrosulphuric acid
- pyrotartrate — a salt derived from pyrotartaric acid
- quarter-hoop — a hoop, especially of steel, fastened around a cask between the bilge and the chime.
- quarterpipes — Plural form of quarterpipe.
- quartz plate — a carefully cut quartz crystal that is piezoelectrically active. Compare crystal (def 10).
- rabbet plane — a plane for cutting rabbets or the like, having a blade set to one side at right angles or diagonally to the direction of motion.
- racket press — a device consisting of a frame closed by a spring mechanism, for keeping taut the strings of a tennis racket, squash racket, etc
- radar picket — a ship, vehicle, or aircraft stationed at a distance from a protected force to increase radar detection range.
- radiata pine — a pine tree, Pinus radiata, native to the western USA. but grown in Australia, New Zealand, and elsewhere to produce building timber
- radioisotope — a radioactive isotope, usually artificially produced: used in physical and biological research, therapeutics, etc.
- radiotherapy — treatment of disease by means of x-rays or of radioactive substances.
- ramapithecus — a genus of extinct Miocene ape known from fossils found in India and Pakistan and formerly thought to be a possible human ancestor.
- re-apportion — to apportion or distribute anew.
- reabsorption — resorption (def 2).
- readaptation — the act of adapting.
- reassumption — the act or process of reassuming something
- recapitalize — to renew or change the capital of.
- recapitulate — to review by a brief summary, as at the end of a speech or discussion; summarize.
- receptacular — having the nature of, or serving as, a receptacle
- receptaculum — a vessel, receptacle or container
- reciprocated — to give, feel, etc., in return.
- reciprocates — to give, feel, etc., in return.
- reciprocator — to give, feel, etc., in return.
- recompensate — to recompense for something: They gave him ten dollars to compensate him for his trouble.
- recuperating — to recover from sickness or exhaustion; regain health or strength.
- recuperation — to recover from sickness or exhaustion; regain health or strength.
- recuperative — that recuperates.
- recuperatory — of or relating to recovery or recuperation