15-letter words containing a, p, e, r, i, n
- artillery plant — any of various tropical urticaceous plants of the genus Pilea, such as P. microphylla, all having stamens that discharge their pollen explosively
- asset-stripping — If a person or company is involved in asset-stripping, they buy companies cheaply, sell off their assets to make a profit, and then close the companies down.
- australian pine — casuarina
- back plastering — the introduction of partitions of lath and plaster between the inner and outer surfaces of a stud wall in order to improve the insulating properties of the wall.
- back projection — a method of projecting pictures onto a translucent screen so that they are viewed from the opposite side, used esp in films to create the illusion that the actors in the foreground are moving
- banana republic — Small, poor countries that are politically unstable are sometimes referred to as banana republics.
- bandpass filter — A bandpass filter is a filter designed to pass all frequencies within a band of frequencies.
- bandstop filter — A bandstop filter is a filter designed to eliminate all frequencies within a band of frequencies.
- bear comparison — to be sufficiently similar in class or range to be compared with (something else), esp favourably
- black operation — a covert and undocumented military operation
- bladder campion — a European caryophyllaceous plant, Silene vulgaris, having white flowers with an inflated calyx
- blasting powder — a form of gunpowder made with sodium nitrate instead of saltpeter, used chiefly for blasting rock, ore, etc.
- braille printer — (printer) (Or "(Braille) embosser") A printer, necessarily an impact printer, that renders text as Braille. Blind users call other printers ink printers.
- brazilian plume — a tropical American plant, Justicia carnea, of the acanthus family, having hairy, prominently veined leaves and a short, dense cluster of purple or pink flowers, grown in greenhouses or outdoors in warm regions.
- break-in period — a period during which certain restrictions or moderation in operating should be followed, as the avoidance of high speed, rapid acceleration, or severe braking for a new automobile.
- breakeven point — a point at which the total revenue and total cost are equal
- breaking plough — a plough with a long shallow mouldboard for turning virgin land or sod land
- breathing space — A breathing space is a short period of time between two activities in which you can recover from the first activity and prepare for the second one.
- brompheniramine — a substance, C 16 H 19 BrN 2 , used as an antihistamine in the management of various allergies, as hay fever.
- cabinet picture — a small easel painting, usually under 3 feet (0.9 meters) in width and formerly exhibited in a cabinet or special room.
- cabinet scraper — a scraper used in preparing a wood surface for sanding.
- calliper splint — a splint consisting of two metal rods with straps attached, for supporting or exerting tension on the leg
- campaign worker — a person who carries out duties for a political candidate or party, esp before an election
- cape finisterre — a headland in NW Spain: the westernmost point of the Spanish mainland
- capital gearing — the ratio of a company's debt capital to its equity capital
- cardinal spider — a large house spider, Tegenaria parietina
- caribbean plate — a major tectonic division of the earth's crust, encompassing the Central American portion of North America, the Caribbean Sea, and the islands of Cuba, Jamaica, Hispaniola, and Puerto Rico, as well as the Leeward and Windward Islands; bordered north and south by the North and South American Plates and west by the Cocos Plate.
- carpentersville — a city in NE Illinois, near Chicago.
- cartesian plane — Usually, Cartesian coordinates. a member of a system of coordinates for locating a point on a plane (Cartesian plane) by its distance from each of two intersecting lines, or in space by its distance from each of three planes intersecting at a point.
- cartesian space — ordinary two- or three-dimensional space.
- cast aspersions — If you cast aspersions on someone or something, you suggest that they are not very good in some way.
- castanospermine — a substance obtained from the Australian chestnut or black bean tree
- centipede grass — a slow-growing grass, Eremochloa ophiuroides, introduced into the U.S. from China and used for lawns in warm areas.
- chairpersonship — a person who presides over a meeting, committee, board, etc.
- chandler period — the period of the oscillation (Chandler wobble) of the earth's axis, varying between 416 and 433 days.
- chinese parsley — coriander leaves used as an herb; cilantro
- chloramphenicol — a broad-spectrum antibiotic used esp in treating typhoid fever and rickettsial infections: obtained from the bacterium Streptomyces venezuelae or synthesized. Formula: C11H12N2O5Cl2
- choral speaking — recitation of poetry, dramatic pieces, etc. by a chorus of speakers
- christadelphian — a member of a Christian millenarian sect founded in the US about 1848, holding that only the just will enter eternal life, that the wicked will be annihilated, and that the ignorant, the unconverted, and infants will not be raised from the dead
- chryse planitia — a plain on Mars, the landing site of the Viking I spacecraft.
- cineangiography — the use of motion-picture recording to trace the passage of dye through blood vessels, for the diagnosis of heart and blood vessel disease
- cinematographed — a motion-picture projector.
- cinematographer — A cinematographer is a person who decides what filming techniques should be used during the shooting of a film.
- cinematographic — a motion-picture projector.
- cinemicrography — the making of a film through the lens of a microscope
- cineradiography — the filming of motion pictures through a fluoroscope or x-ray machine.
- class president — the student president of a school or college class
- clumber spaniel — a type of thickset spaniel having a broad heavy head
- company officer — a captain or lieutenant serving in a company.
- comparativeness — of or relating to comparison.