20-letter words containing a, m, p
- potassium antimonate — a white, crystalline, slightly water-soluble powder, KSbO 3 , used chiefly as a pigment in paints.
- potassium bichromate — an orange-red, crystalline, water-soluble, poisonous powder, K 2 Cr 2 O 7 , used chiefly in dyeing, photography, and as a laboratory reagent.
- potassium binoxalate — a white, crystalline, hygroscopic, poisonous solid, KHC 2 O 4 , that is usually hydrated: used chiefly for removing ink stains, cleaning metal and wood, and in photography.
- potassium bitartrate — cream of tartar.
- potassium dichromate — an orange-red crystalline soluble solid substance that is a good oxidizing agent and is used in making chrome pigments and as a bleaching agent. Formula: K2Cr2O7
- potassium-bitartrate — a white, crystalline, water-soluble powder, C 4 H 5 KO 6 , used chiefly as an ingredient in baking powders and in galvanic tinning of metals. Also called potassium bitartrate, potassium acid tartrate. Compare tartar (def 3).
- power of appointment — the authority granted by a donor to a donee to select the person or persons who are to enjoy property rights or income upon the death of the donor or of the donee or after the termination of existing rights or interests.
- practical imperative — (in Kantian ethics) the dictum that one should treat oneself and all humanity as an end and never as a means.
- predicate nominative — (in Latin, Greek, and certain other languages) a predicate noun or adjective in the nominative case.
- premenstrual tension — Premenstrual tension is the same as premenstrual syndrome. The abbreviation PMT is often used.
- prenuptial agreement — A prenuptial agreement is a written contract made between a man and a woman before they marry, in which they state how their assets such as property and money should be divided if they get divorced.
- prescriptive grammar — an approach to grammar that is concerned with establishing norms of correct and incorrect usage and formulating rules based on these norms to be followed by users of the language.
- presentation manager — The elephantine graphical user interface to the OS/2 operating system.
- presidential primary — a direct primary for the selection of state delegates to a national party convention and the expression of preference for a U.S. presidential nominee.
- price discrimination — the practice of offering identical goods to different buyers at different prices, when the goods cost the same.
- prima facie evidence — evidence sufficient to establish a fact or to raise a presumption of fact unless rebutted.
- prima-facie evidence — evidence that is sufficient to establish a fact or to raise a presumption of the truth of a fact unless controverted
- primary optical area — a point in or toward the upper left-hand corner of a printed page, advertisement, or the like, looked at first in reading. Abbreviation: POA.
- primary spermatocyte — a male germ cell (primary spermatocyte) that gives rise by meiosis to a pair of haploid cells (secondary spermatocytes) that give rise in turn to spermatids.
- primitive polynomial — a polynomial that has content equal to 1. Compare content1 (def 11a).
- prince william sound — a sound in the Gulf of Alaska, on the S coast of Alaska: S end of Trans-Alaska oil pipeline at port of Valdez.
- procedural agreement — regulations agreed between the parties to collective bargaining, defining the bargaining units, bargaining scope, procedures for collective bargaining, and the facilities to be provided to trade union representatives
- production agreement — a contract concerning the production or manufacture of something
- programming language — a high-level language used to write computer programs, as COBOL or BASIC, or, sometimes, an assembly language.
- proprietary medicine — a drug or agent manufactured and distributed under a trade name
- pseudoparenchymatous — (in certain fungi and red algae) a compact mass of tissue, made up of interwoven hyphae or filaments, that superficially resembles plant tissue.
- psychological moment — the proper or critical time for achieving a desired result: She found the right psychological moment to make her request.
- public administrator — an official of a city, county, or state government.
- punch a (time) clock — to insert a timecard into a time clock when coming to or going from work
- pure lambda-calculus — Lambda-calculus with no constants, only functions expressed as lambda abstractions.
- pythagoras's theorem — (mathematics) The theorem of geometry, named after Pythagoras, of Samos, Ionia, stating that, for a right-angled triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides. I.e. if the longest side has length A and the other sides have lengths B and C (in any units), A^2 = B^2 + C^2 (2004-02-12)
- quantum cryptography — a method of coding information based on quantum mechanics, which is said to be unbreakable
- rapid transit system — a rail or other system providing rapid public transport
- raynaud's phenomenon — a secondary circulatory disorder, often associated with a primary vascular disease, characterized by changes of blood flow resulting in white, bluish, or red hands and feet
- real-time processing — data-processing by a computer which receives constantly changing data, such as information relating to air-traffic control, travel booking systems, etc, and processes it sufficiently rapidly to be able to control the source of the data
- red-carpet treatment — deferential treatment accorded to a person of importance
- regional development — aid-giving to poorer areas or countries
- republic of maldives — a republic occupying an archipelago of 1087 coral islands in the Indian Ocean, southwest of Sri Lanka: came under British protection in 1887; became independent in 1965 and a republic in 1968; member of the Commonwealth (1982–2016). The economy and infrastructure were severely damaged in the Indian Ocean tsunami of December 2004. Official language: Divehi. Official religion: (Sunni) Muslim. Currency: rufiyaa. Capital: Malé. Pop: 393 988 (2013 est). Area: 298 sq km (115 sq miles)
- repurchase agreement — a contract between a dealer, as a bank, and an investor, whereby the investor purchases securities with the promise that they will be bought back by the dealer on a designated date, for which the investor receives a fixed return.
- retinitis pigmentosa — degeneration of the retina manifested by night blindness and gradual loss of peripheral vision, eventually resulting in tunnel vision or total blindness.
- rocky mountain sheep — bighorn.
- rotations per minute — revolutions per minute
- royal leamington spa — a city in Warwickshire, central England: health resort.
- saint james's palace — a palace in London, England: the royal residence from the time of Henry VIII until the accession of Victoria.
- salmonella poisoning — an illness caused by ingestion of a salmonella bacterium
- semiautobiographical — pertaining to or being a fictionalized account of an author's own life.
- send someone packing — to dismiss or get rid of (someone) peremptorily
- skating championship — a competition for ice-skating
- societal development — the formation and transformation of social life, customs, institutions, etc.
- some hope/not a hope — If you say 'Some hope', or 'Not a hope', you think there is no possibility that something will happen, although you may want it to happen.