20-letter words containing e, m, p, l, o
- premenstrual tension — Premenstrual tension is the same as premenstrual syndrome. The abbreviation PMT is often used.
- 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.
- 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
- programming language — a high-level language used to write computer programs, as COBOL or BASIC, or, sometimes, an assembly language.
- property development — the business of buying land and buildings and then making improvements to them so that their selling price exceeds the price paid for them
- psychological moment — the proper or critical time for achieving a desired result: She found the right psychological moment to make her request.
- psychomotor epilepsy — temporal-lobe epilepsy.
- punch a (time) clock — to insert a timecard into a time clock when coming to or going from work
- 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
- 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)
- royal leamington spa — a city in Warwickshire, central England: health resort.
- 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.
- single point mooring — monobuoy.
- societal development — the formation and transformation of social life, customs, institutions, etc.
- south american plate — a major tectonic division of the earth's crust, comprising the continent of South America and several ocean basins and bounded on the north by the Caribbean Plate, on the east by the Mid-Atlantic Ridge, on the west by a submarine trench that borders the western coast of the continent, and on the south by the Antarctic Plate.
- spiral of archimedes — a curve that is the locus of a point that moves outward with uniform speed along a vector, beginning at the origin, while the vector rotates about the origin with uniform angular velocity. Equation (in polar coordinates): r = aθ.
- synoptic meteorology — a branch of meteorology analyzing data collected simultaneously over a wide region, for the purpose of weather forecasting.
- television programme — a programme broadcast on television
- trumpet call for sth — a signal for something
- unemployment benefit — an allowance of money paid, usually weekly, to an unemployed worker by a state or federal agency or by the worker's labor union or former employer during all or part of the period of unemployment.
- unemployment figures — statistics relating to the number of people who are out of work
- upper yosemite falls — a section of Yosemite Falls in central California, in the Yosemite National Park that is 436 m (1430 ft) high
- vertical envelopment — envelopment of an enemy accomplished by parachuting and landing airborne troops at the rear of the enemy's position.
- white people problem — a fairly minor problem, complaint, etc., associated with a relatively high standard of living; a first world problem.
- winter olympic games — an international contest of winter sports, esp skiing, held every four years
- woolly spider monkey — a rare related monkey, Brachyteles arachnoides, of SE Brazil
- yellow-billed magpie — either of two corvine birds, Pica pica (black-billed magpie) of Eurasia and North America, or P. nuttalli (yellow-billed magpie) of California, having long, graduated tails, black-and-white plumage, and noisy, mischievous habits.