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21-letter words containing d, e, p, r

  • protest demonstration — a manifestation of protest by public rally, parade, etc
  • pseudohermaphroditism — an individual having internal reproductive organs of one sex and external sexual characteristics resembling those of the other sex or being ambiguous in nature. Compare hermaphrodite (def 1).
  • psychopathic disorder — (in England, according to the Mental Health Act 1983) a persistent disorder or disability of mind which results in abnormally aggressive or seriously irresponsible conduct on the part of the person concerned
  • public address system — loudspeaker
  • public-address system — a combination of electronic devices that makes sound audible via loudspeakers to many people, as in an auditorium or out of doors.
  • purchasing department — the group of staff within an organization that is responsible for buying goods or products
  • purple-fringed orchid — either of two orchids, Habenaria fimbriata or H. psycodes, of eastern North America, having a cluster of fragrant purple flowers with a fringed lip.
  • purple-fringed orchis — either of two North American orchids (Habenaria psycodes and H. fimbriata) with purple-fringed flowers
  • put in the hard yards — to make a great effort to achieve an end
  • pyrenean mountain dog — a large heavily built dog of an ancient breed originally used to protect sheep from wild animals: it has a long thick white coat with a dense ruff
  • ralph roister doister — a play (1553?) by Nicholas Udall: the earliest known English comedy.
  • reading comprehension — a text that students use to help them improve their reading skills, by reading it and answering questions relating to the text. Sometimes used as a test or examination of reading skills. A reading comprehension can be in the student's own or another language
  • real-estate developer — a person who buys and develops houses, buildings, and land in order to sell them and make a profit from them
  • recurrent expenditure — ongoing expenditure of an organization, such as salaries and travelling expenses
  • red-headed woodpecker — a black and white North American woodpecker, Melanerpes erythrocephalus, having a red head and neck.
  • redevelopment company — a private corporation or a public agency that stimulates the improvement of land, as through a building project subject to certain designs and controls, by financing, selling, or leasing such real estate to interested buyers or lessees.
  • redlegged grasshopper — a migratory grasshopper, Melanoplus femur-rubrum, of the southwestern and midwestern U.S., having reddish skin on the underside of the hind legs: an agricultural pest.
  • redwood national park — a national park in N California: redwood forest with some of the world's tallest trees. 172 sq. mi. (445 sq. km).
  • remote procedure call — (networking, programming)   (RPC) A protocol which allows a program running on one host to cause code to be executed on another host without the programmer needing to explicitly code for this. RPC is an easy and popular paradigm for implementing the client-server model of distributed computing. An RPC is initiated by the caller (client) sending request message to a remote system (the server) to execute a certain procedure using arguments supplied. A result message is returned to the caller. There are many variations and subtleties in various implementations, resulting in a variety of different (incompatible) RPC protocols.
  • residual unemployment — the unemployment that remains in periods of full employment, as a result of those mentally, physically, or emotionally unfit to work
  • rio de la plata river — Rí·o de la [ree-aw th e lah] /ˈri ɔ ðɛ lɑ/ (Show IPA) an estuary on the SE coast of South America between Argentina and Uruguay, formed by the Uruguay and Paraná rivers, about 185 miles (290 km) long.
  • roodepoort-maraisburg — a city in S Transvaal, in the NE Republic of South Africa.
  • round-necked pullover — a sweater with a plain round neckline
  • sanitation department — the department of local government responsible for collecting and disposing of refuse
  • sao bernardo do campo — a city in SE Brazil, SE of São Paulo.
  • sao jose do rio preto — a city in SE Brazil, NW of São Paulo.
  • sao tome and principe — Democratic Republic of, a republic in W Africa, comprising the islands of São Tomé and Príncipe, in the Gulf of Guinea, N of the equator: a former overseas province of Portugal; gained independence in 1975. 372 sq. mi. (964 sq. km). Capital: São Tomé.
  • scalar triple product — the volume of the parallelepiped defined by three given vectors, u, v, and w, usually represented as u·v 1 (v×w), [ uvw ], or (uvw), where × denotes a cross product and · denotes an inner product.
  • school superintendent — an official whose job is to oversee school administration within a district
  • science correspondent — a newspaper or television journalist who specializes in reporting on new discoveries in science
  • scorched earth policy — a military practice of devastating the property and agriculture of an area before abandoning it to an advancing enemy.
  • scorched-earth policy — a military practice of devastating the property and agriculture of an area before abandoning it to an advancing enemy.
  • sheppard's correction — a method of correcting the bias in standard deviations and higher moments of distributions that arises from grouping values of the variable.
  • sinusoidal projection — an equal-area projection in which parallels are straight lines spaced at regular intervals, the central meridian is a straight line one-half the length of the equator, and the other meridians are curves symmetrical to the central meridian.
  • skop, skiet en donder — violent action and melodramatic adventure in a film
  • sleep-terror disorder — night terror.
  • special correspondent — a journalist who covers stories firsthand from a war zone
  • spherical coordinates — Usually, spherical coordinates. any of three coordinates used to locate a point in space by the length of its radius vector and the angles this vector makes with two perpendicular polar planes.
  • steady-state response — A steady-state response is the behavior of a circuit after a long time when steady conditions have been reached after an external excitation.
  • step-down transformer — a device that transfers an alternating current from one circuit to one or more other circuits with a decrease of voltage
  • stock list department — (in an American stock exchange) the department dealing with monitoring compliance with its listing requirements and rules
  • student participation — the extent to which students participate or involve themselves in a class, course, etc
  • the end of one's rope — the end of one's endurance, resources, etc.
  • the oldest profession — prostitution
  • the stars and stripes — the national flag of the United States of America, consisting of 50 white stars representing the present states on a blue field and seven red and six white horizontal stripes representing the original states
  • thermal decomposition — Thermal decomposition is the process in which a chemical species breaks down when its temperature is increased.
  • third party procedure — impleader.
  • third-party insurance — insurance that compensates for a loss to a party other than the insured for which the insured is liable.
  • three-toed woodpecker — either of two woodpeckers of the genus Picoides, of the Northern Hemisphere, having only three toes on each foot.
  • threshold wage policy — a policy whereby wages are increased in accordance with inflation
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