12-letter words containing p, o, i, r
- pterosaurian — a pterosaur
- public works — government-funded construction
- puerto limon — Limón (def 2).
- 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.
- pulvilliform — resembling a pulvillus
- puncturation — the act of puncturing
- punditocracy — influential media pundits collectively.
- purification — to make pure; free from anything that debases, pollutes, adulterates, or contaminates: to purify metals.
- put in order — arrange correctly
- putrefaction — the act or process of putrefying; the anaerobic decomposition of organic matter by bacteria and fungi that results in obnoxiously odorous products; rotting.
- pyonephritis — suppurative inflammation of the kidney.
- pyramidology — a belief system based on the supposed occult significance of the Egyptian pyramids
- pyridoxamine — a metabolic form of pyridoxine
- pyritiferous — having or producing pyrites
- pyritohedral — of or relating to a pyritohedron
- pyritohedron — a crystal form of 12 pentagonal faces.
- pyrochemical — pertaining to or producing chemical change at high temperatures.
- pyroelectric — pertaining to, subject to, or manifesting pyroelectricity.
- pyrogenicity — the characteristic of causing fever
- pyrognostics — the characteristics of a mineral, such as fusibility and flame coloration, that are revealed by the application of heat
- pyroligneous — produced by the distillation of wood.
- pyromagnetic — (formerly) thermomagnetic (def 1).
- pyromaniacal — a compulsion to set things on fire.
- pyromorphite — a mineral, lead chlorophosphate, Pb 5 P 3 O 1 2 Cl, occurring in crystalline and massive forms, and of a green, yellow, or brown color; green lead ore: a minor ore of lead.
- pyrophyllite — Mineralogy. a phyllosilicate, AlSi 2 O 5 (OH), usually having a white or greenish color, and occurring in either foliated or compact masses, the latter variety being used like soapstone.
- pyrosulfuric — of or derived from pyrosulfuric acid; disulfuric.
- pyrotechnics — the art of making fireworks.
- pyrotechnist — a person skilled in pyrotechnics, especially in the manufacture or use of fireworks.
- quadraphonic — of, noting, or pertaining to the recording and reproduction of sound over four separate transmission or direct reproduction channels instead of the customary two of the stereo system: a quadraphonic recording.
- quadriphonic — quadraphonic.
- quadrophonic — Alternative spelling of quadraphonic.
- quid pro quo — something that is given or taken in return for something else.
- quiz program — a radio or television program in which contestants compete, often for prizes, by answering questions.
- radiator cap — a cap in the opening of a device for cooling an internal-combustion engine, through which coolant liquid can be added
- radiographer — X-ray technician
- radioisotope — a radioactive isotope, usually artificially produced: used in physical and biological research, therapeutics, etc.
- radiophonist — a person who produces radiophonic music
- radiotherapy — treatment of disease by means of x-rays or of radioactive substances.
- railroad pen — a ruling pen for drawing two parallel lines.
- ranging pole — a pole for marking positions in surveying
- rapeseed oil — a brownish-yellow oil obtained by expression from rapeseed and used chiefly as a lubricant, an illuminant, and in the manufacture of rubber substitutes.
- re-apportion — to apportion or distribute anew.
- re-deposited — to place for safekeeping or in trust, especially in a bank account: He deposited his paycheck every Friday.
- reabsorption — resorption (def 2).
- readaptation — the act of adapting.
- reaping hook — a curved cutting tool with a sharp edge, used in the cutting or harvesting of crops
- reassumption — the act or process of reassuming something
- receipt book — book containing receipt slips
- receptionism — the doctrine that in the communion service the communicant receives the body and blood of Christ but that the bread and wine are not transubstantiated.
- receptionist — a person employed to receive and assist callers, clients, etc., as in an office.