18-letter words containing p, e, r, i, h
- a leap in the dark — an action performed without knowledge of the consequences
- a pain in the arse — In informal English, if you call someone or something a pain or a pain in the neck, you mean that they are very annoying or irritating. Expressions such as a pain in the arse and a pain in the backside in British English, or a pain in the ass and a pain in the butt in American English, are also used, but most people consider them offensive.
- aerial photography — Aerial photography is the process of taking photographs of an area from above, for example from an airplane or mast.
- anthropocentricity — the state or quality of being anthropocentric.
- aperture synthesis — an array of radio telescopes used in radio astronomy to simulate a single large-aperture telescope. Some such instruments use movable dishes while others use fixed dishes
- aphrodite of melos — a Greek statue of Venus in marble, c200 b.c., found in 1820 on Melos and now in the Louvre, Paris.
- arctic archipelago — group of mostly large islands in the Arctic Ocean off the N coast of Canada
- arm's-length price — a price of a transaction agreed in accordance with market values, disregarding any connection such as common ownership of the companies involved
- aspherical surface — a lens or mirror surface that does not form part of a sphere and is used to reduce aberrations
- athletic supporter — jockstrap
- atmospheric engine — an early form of single-acting engine in which the power stroke is provided by atmospheric pressure acting upon a piston in an exhausted cylinder.
- atmospheric window — wavelengths of the electromagnetic spectrum that can be transmitted through the earth's atmosphere. Atmospheric windows occur in the visible, infrared, and radio regions of the spectrum
- auditory phonetics — the branch of phonetics concerned with the perception of speech sounds by humans
- australopithecines — Plural form of australopithecine.
- authorized capital — the total amount of value of the shares that a company is allowed to distribute
- avoirdupois weight — a British and American system of weights based on a pound of 16 ounces
- baritone saxophone — the second lowest instrument in the family of saxophones
- behaviour patterns — the characteristic ways in which a person or animal acts
- benchmark position — a public service job used for comparison with a similar position, such as a position in commerce, for wage settlements
- bichromate process — any of several methods of photography in which the light-sensitive medium is alkaline bichromate associated with a colloid such as gum, albumen, or gelatin.
- biological therapy — biotherapy
- brazilian sapphire — a blue variety of tourmaline used as a gem: not a true sapphire.
- carthaginian peace — the treaty by which Rome reduced Carthage to the status of a puppet state in 201 b.c.
- cassiopeia's chair — the five brightest stars in the constellation Cassiopeia that seem to form the shape of a W or M
- caterpillar hunter — any of various carabid beetles of the genus Calosoma, of Europe and North America, which prey on the larvae of moths and butterflies
- cepheid (variable) — any of a class of pulsating, yellow, supergiant stars whose brightness varies in regular periods: from the period-luminosity relation, the distance of such a star can be determined
- chagos archipelago — group of islands in the Indian Ocean 1,180 mi (1,899 km) northeast of Mauritius, comprising the British Indian Ocean Territory: chief island, Diego Garcia
- character graphics — ASCII art
- checkpoint charlie — a crossing between East and West Berlin during the Cold War
- chemical pregnancy — a pregnancy that is confirmed by a pregnancy test but not by clinical signs and terminates before clinical signs can be observed.
- christine de pisan — ?1364–?1430, French poet and prose writer, born in Venice. Her works include ballads, rondeaux, lays, and a biography of Charles V of France
- christopher sholes — Christopher Latham [ley-thuh m,, -th uh m] /ˈleɪ θəm,, -ðəm/ (Show IPA), 1819–90, U.S. inventor of the typewriter.
- chromolithographer — One engaged in chromolithography.
- citizenship papers — the document stating that a naturalized person has been formally declared a citizen
- closed scholarship — a scholarship for which only certain people, such as those from a particular school or with a particular surname, are eligible
- come to grips with — If you come to grips with a problem, you consider it seriously, and start taking action to deal with it.
- comparative method — a body of procedures and criteria used by linguists to determine whether and how two or more languages are related and to reconstruct forms of their hypothetical parent language.
- comparison shopper — an employee of a retail store hired to visit competing stores in order to gather information regarding styles, quality, prices, etc., of merchandise offered by competitors.
- comprehensibleness — The quality of being comprehensible; comprehensibility.
- controllable-pitch — (of a marine or aircraft propeller) having blades whose pitch can be changed during navigation or flight; variable-pitch.
- cornucopian thesis — the belief that, as long as science and technology continue to advance, growth can continue for ever because these new advances create new resources
- counter-hypothesis — a proposition, or set of propositions, set forth as an explanation for the occurrence of some specified group of phenomena, either asserted merely as a provisional conjecture to guide investigation (working hypothesis) or accepted as highly probable in the light of established facts.
- countertherapeutic — Working against a therapy.
- cranial osteopathy — osteopathy that focuses on the cranium and the spine
- creatine phosphate — phosphocreatine.
- crystal microphone — a microphone that uses a piezoelectric crystal to convert sound energy into electrical energy
- cyclic pitch lever — a lever in a helicopter to change the angle of attack of individual rotor blades, causing the helicopter to move forwards, backwards, or sideways
- daisywheel printer — (printer) A kind of impact printer where the characters are arranged on the ends of the spokes of a wheel (resembling the petals on a daisy). The wheel (usually made of plastic) is rotated to select the character to print and then an electrically operated hammer mechanism bends the selected spoke forward slightly, sandwiching an ink ribbon between the character and the paper, as in a typewriter. One advantage of this arrangement over that of a typewriter is that different wheels may be inserted to produce different typefaces.
- deanthropomorphism — the ridding of philosophy or religion of anthropomorphic beliefs and doctrines.
- decachlorobiphenyl — (organic compound) The fully chlorinated polychlorinated biphenyl containing ten chlorine atoms.
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