22-letter words containing p, a, c, i
- outline specifications — preliminary specifications or plans on which later plans are based
- packet internet groper — ping
- padparadschah sapphire — a rare, yellowish-orange sapphire found in Sri Lanka.
- para-aminobenzoic acid — part of the folic acid molecule, a white or yellowish, crystalline, slightly water-soluble solid, C 7 H 7 NO 2 , the para isomer of aminobenzoic acid: used chiefly in the manufacture of dyes and pharmaceuticals and in sunscreens to protect against ultraviolet light. Abbreviation: PABA.
- paracoccidioidomycosis — a chronic infection caused by the fungus Paracoccidioides brasiliensis, occurring in Mexico and in Central and South America, characterized by mouth and throat ulcers, weight loss, and lesions on the skin, intestines, and genitals.
- paranoid schizophrenia — severe psychiatric disorder
- parliamentary election — an election to select the members of a national parliament
- paroxysmal tachycardia — tachycardia that begins and subsides suddenly.
- particular affirmative — a proposition of the form “Some S is P.” Symbol: I.
- partnerships for peace — a subsidiary organization of NATO, comprising former Warsaw Pact countries that wish to be allied with NATO but have not been granted full NATO membership: established in 1994
- pavlovian conditioning — conditioning (def 2).
- peanut-butter sandwich — a sandwich with a filling of peanut-butter
- percussive maintenance — (jargon) The fine art of whacking a device to get it working, possibly using a fine adjuster.
- philosophical analysis — linguistic analysis.
- physiographic province — a geographic region in which climate and geology have given rise to an array of landforms different from those of surrounding regions.
- picture of dorian gray — a novel (1891) by Oscar Wilde.
- pizza delivery service — a service whereby a pizza restaurant delivers pizzas to customers who order by telephone
- planck's radiation law — the law that energy associated with electromagnetic radiation, as light, is composed of discrete quanta of energy, each quantum equal to Planck's constant times the corresponding frequency of the radiation: the fundamental law of quantum mechanics.
- plastic pin grid array — (hardware, processor) (PPGA) The package used for certain Intel Celeron processors. PPGA processors fit into Socket 370 motherboard sockets. The Plastic Pin Grid Array packaging is similar to that used on Pentium processors. The silicon core is covered by a heat slug that faces down toward the motherboard. The Celeron 300A to the 533 use a PPGA package. The Celeron 566 onward use a FC-PGA package. Celeron processors are also available in Slot 1 SEPP packaging.
- play one's cards right — a usually rectangular piece of stiff paper, thin pasteboard, or plastic for various uses, as to write information on or printed as a means of identifying the holder: a 3″ × 5″ file card; a membership card.
- pneumocystis pneumonia — a pulmonary infection caused by the protozoan Pneumocystis carinii, occurring as an opportunistic disease in persons with impaired immune systems, as AIDS victims. Abbreviation: PCP.
- polymyalgia rheumatica — a chronic inflammatory disease, common among older persons, characterized by recurrent episodes of muscle pain and stiffness, sometimes leading to cardiovascular complications or blindness.
- poor richard's almanac — an almanac (1732–58) written and published by Benjamin Franklin.
- portuguese east africa — former name of Mozambique (def 1).
- portuguese west africa — a republic in SW Africa: formerly an overseas province of Portugal; gained independence Nov. 11, 1975. 481,226 sq. mi. (1,246,375 sq. km). Capital: Luanda.
- post office department — former name of United States Postal Service.
- potassium ferricyanide — a bright-red, crystalline, water-soluble, poisonous solid, K 3 Fe(CN) 6 , used chiefly in the manufacture of pigments, as Prussian blue, and of paper, especially blueprint paper.
- potassium ferrocyanide — a lemon-yellow, crystalline, water-soluble solid, K 4 Fe(CN) 6 ⋅3H 2 O, used chiefly in casehardening alloys having an iron base and in dyeing wool and silk.
- practice makes perfect — If you say 'practice makes perfect', you mean that it is possible to learn something or develop a skill if you practise enough. People often say this to encourage someone to keep practising.
- prawn-sandwich brigade — sports fans who are perceived to lack passion and commitment, and who it is supposed attend matches in order to eat food and buy merchandise rather than cheer on their team
- preventive maintenance — (PM) To bring down a machine for inspection or test purposes. See provocative maintenance, scratch monkey.
- price variation clause — a clause in a contract allowing the seller to vary the selling price under certain conditions
- primary rate interface — (PRI) A type of ISDN connection. In North America and Japan, this consists of 24 channels, usually divided into 23 B channels and 1 D channel, and runs over the same physical interface as T1. Elsewhere the PRI has 31 user channels, usually divided into 30 B channels and 1 D channel and is based on the E1 interface. PRI is typically used for connections such as one between a PBX (private branch exchange, a telephone exchange operated by the customer of a telephone company) and a CO (central office, of the telephone company) or IXC (inter exchange carrier, a long distance telephone company).
- prince edward islander — a native or inhabitant of Prince Edward Island
- prince of wales island — the largest island in the Alexander Archipelago, in SE Alaska. 1500 sq. mi. (3990 sq. km).
- principal ideal domain — a commutative integral domain with multiplicative identity in which every ideal is principal.
- private-equity company — an organization that uses private equity to gain control of and manage companies
- process cinematography — cinematography in which the main or foreground action or scene is superimposed on or combined with simulated or separately filmed background action or scenery to produce special visual effects.
- productivity agreement — an agreement whereby the employees of an organization agree to changes which are intended to improve productivity in return for an increase in pay or other benefits
- programmed instruction — a progressively monitored, step-by-step teaching method, employing small units of information or learning material and frequent testing, whereby the student must complete or pass one stage before moving on to the next.
- progressive participle — present participle.
- pronunciation spelling — a spelling intended to match a certain pronunciation more closely than the traditional spelling does, as gonna for going to , kinda for kind of (meaning “rather”), git for get , or lite for light.
- propositional calculus — propositional logic
- propositional function — sentential function.
- prothonotary apostolic — a member of the first college of prelates of the Roman Curia.
- psychological thriller — book, movie: suspense story
- public domain software — public domain
- public limited company — A public limited company is the same as a public company. The abbreviation plc is used after such companies' names.
- pulmonary tuberculosis — tuberculosis of the lungs.
- punctuated equilibrium — theory of, Biology. a hypothesis holding that the evolution of species proceeds in a characteristic pattern of relative stability for long periods of time interspersed with much shorter periods during which many species become extinct and new species emerge. Also called punctuationalism. Compare gradualism (def 3).