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20-letter words containing a, o, r, i, s

  • pound cost averaging — a method of accumulating capital by investing a fixed sum in a particular security at regular intervals, in order to achieve an average purchase price below the arithmetic average of the market prices on the purchase dates
  • prefecture apostolic — a territory in the early stage of missionary development.
  • premenstrual tension — Premenstrual tension is the same as premenstrual syndrome. The abbreviation PMT is often used.
  • prepositional phrase — a phrase consisting of a preposition, its object, which is usually a noun or a pronoun, and any modifiers of the object, as in the gray desk I use.
  • prescription glasses — corrective spectacles
  • presentation manager — The elephantine graphical user interface to the OS/2 operating system.
  • preservation society — a society dedicated to the preservation of something, especially a building, environment, or animal
  • price discrimination — the practice of offering identical goods to different buyers at different prices, when the goods cost the same.
  • price-earnings ratio — the current price of a share of common stock divided by earnings per share over a 12-month period, often used in stock evaluation. Abbreviation: p/e.
  • 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.
  • 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.
  • private investigator — private detective. Abbreviation: PI, p.i., P.I.
  • prohibited substance — a substance, such as a drug, etc, that is banned or forbidden by law or other authority
  • property speculation — the buying or selling of property in the hope of deriving capital gains
  • proportional spacing — a feature of some typewriters and other output devices whereby the space allotted to each character is determined by the width of the character
  • prosecuting attorney — the public officer in a county, district, or other jurisdiction charged with carrying on the prosecution in criminal proceedings.
  • psychiatric hospital — institution treating mental disorders
  • public administrator — an official of a city, county, or state government.
  • pyroligneous alcohol — methyl alcohol.
  • quaker meeting house — a place where Quakers gather for worship
  • quasi-stellar object — quasar. Abbreviation: QSO.
  • rachel louise carson — Christopher ("Kit") 1809–68, U.S. frontiersman and scout.
  • radiation resistance — the resistive component of the impedance of a radio transmitting aerial that arises from the radiation of power
  • raise one's glass to — to drink the health of; drink a toast to
  • 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
  • receivables turnover — A receivables turnover is a measure of cash flow that is calculated by dividing net credit sales by average accounts receivable.
  • reciprocal insurance — insurance in which members of a reciprocal exchange, acting through an attorney-in-fact, insure themselves and each other.
  • reductio ad absurdum — a reduction to an absurdity; the refutation of a proposition by demonstrating the inevitably absurd conclusion to which it would logically lead.
  • refracting telescope — an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens set into one end of a tube and an adjustable eyepiece or combination of lenses set into the other end of a tube that slides into the first and through which the enlarged object is viewed directly; the other form (reflecting telescope) has a concave mirror that gathers light from the object and focuses it into an adjustable eyepiece or combination of lenses through which the reflection of the object is enlarged and viewed. Compare radio telescope.
  • refuse disposal unit — a unit or part of a sink that disposes of waste food, etc, by grinding
  • relative atomic mass — the ratio of the average mass per atom of the naturally occurring form of an element to one-twelfth the mass of an atom of carbon-12
  • 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)
  • réseaux ip européens — (RIPE) A collaboration between European networks which use the TCP/IP protocol suite to provide Internet services.
  • reservations manager — A reservations manager at a hotel is responsible for the reservations at the hotel.
  • respiratory quotient — the ratio of the amount of carbon dioxide released by the lungs to the amount of oxygen taken in during a given period.
  • restriction fragment — a length of DNA cut from the strand by a restriction enzyme.
  • restrictive covenant — a covenant with a clause that restricts the action of any party to it, especially an agreement among property owners not to sell to members of particular minority groups.
  • retinitis pigmentosa — degeneration of the retina manifested by night blindness and gradual loss of peripheral vision, eventually resulting in tunnel vision or total blindness.
  • reversionary annuity — an annuity payable to a beneficiary during the period of time he or she survives the insured.
  • rheumatoid arthritis — a chronic autoimmune disease characterized by inflammation of the joints, frequently accompanied by marked deformities, and ordinarily associated with manifestations of a general, or systemic, affliction.
  • ride on shank's mare — to walk
  • rise to the occasion — to have the courage, wit, etc, to meet the special demands of a situation
  • rocky mountain basic — (language)   The BASIC language used by Hewlett Packard on their 680x0-based computers. Rocky Mountain Basic is good for interfaces to IEEE 488 controls and contains many mathematical and matrix functions. It has about 600 commands. Typical applications include automatic test stations.
  • rocky mountain sheep — bighorn.
  • rotations per minute — revolutions per minute
  • rough-winged swallow — either of two New World swallows of the genus Stelgidopteryx, having outer primary feathers with small barblike hooks on the margins.
  • royal air force list — an official list of all serving commissioned officers of the RAF and reserve officers liable for recall
  • royal british legion — an organization founded in 1921 to provide services and assistance for former members of the armed forces
  • royal leamington spa — a city in Warwickshire, central England: health resort.
  • sailor's breastplate — a knot consisting of three overlapping loops formed by a single rope passed alternately over and under itself at crossings.
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