15-letter words containing p, r, a, i, s
- athletic sports — sports, esp track and field events, in which athleticism is required
- atmospherically — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
- australian alps — a mountain range in SE Australia, in E Victoria and SE New South Wales. Highest peak: Mount Kosciuszko, 2195 m (7316 ft)
- australian pine — casuarina
- autobiographers — Plural form of autobiographer.
- autobiographies — Plural form of autobiography.
- autoradiographs — Plural form of autoradiograph.
- 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.
- bacteriophagous — Pertaining to the predation and consumption of bacterium.
- 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.
- baptism of fire — If someone who has just begun a new job has a baptism of fire, they immediately have to cope with very many severe difficulties and obstacles.
- barium sulphate — a white insoluble fine dense powder, used as a pigment, as a filler for paper, rubber, etc, and in barium meals. Formula: BaSO4
- battleship gray — a subdued bluish gray.
- bear comparison — to be sufficiently similar in class or range to be compared with (something else), esp favourably
- bias (ply) tire — a motor vehicle tire having a foundation of plies of rubberized cords in a crisscross pattern of lines diagonal to the center line of the tread
- biostratigraphy — the examination of the ages of rock strata by using fossils
- bird of passage — If you refer to someone as a bird of passage, you mean that they are staying in a place for a short time before going to another place.
- blasting powder — a form of gunpowder made with sodium nitrate instead of saltpeter, used chiefly for blasting rock, ore, etc.
- brachial plexus — a network of nerves in the armpits and neck, innervating the shoulders, arms, and hands.
- braille display — (hardware) (Or "refreshable braille display", "refreshable display") An electromechanical device that renders braille with tiny, independently controlled pins used to represent the state of dots in braille cells. Each pin, in its "on" state, raises above the top of its hole in the screen; in its "off" state, it drops below the top of its hole. Older systems used tiny solenoids to control the state of the pins; modern systems are piezoelectric. Typical dimensions of a braille display are 1 line of 40 cells, each cell of two-by-eight dots.
- 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.
- broca's aphasia — a type of aphasia caused by a lesion in Broca's area of the brain, characterized by misarticulated speech and lack of grammatical morphemes.
- brushback pitch — a fast ball deliberately thrown at or too near a batter's head
- 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
- cape finisterre — a headland in NW Spain: the westernmost point of the Spanish mainland
- capital letters — a letter of the alphabet that usually differs from its corresponding lowercase letter in form and height, as A, B, Q, and R as distinguished from a, b, q, and r : used as the initial letter of a proper name, the first word of a sentence, etc.
- capital surplus — any surplus of a business firm not derived from direct earnings or profits
- caprifoliaceous — of, relating to, or belonging to the Caprifoliaceae, a family of N temperate shrubs, small trees, and climbers including honeysuckle, elder, and guelder-rose
- captain's chair — a hardwood armchair having a low, curved back, formed of a single rail supported by spindles, and a saddle seat
- cardinal points — the four main points of the compass: north, south, east, and west
- cardinal spider — a large house spider, Tegenaria parietina
- 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.
- casparian strip — a band of suberized material around the radial walls of endodermal cells: impervious to gases and liquids
- cast aspersions — If you cast aspersions on someone or something, you suggest that they are not very good in some way.
- cast-iron plant — any of several plants belonging to the genus Aspidistra, of the lily family, native to eastern Asia, especially A. eliator, having large evergreen leaves often striped with white, and grown as a houseplant.
- castanospermine — a substance obtained from the Australian chestnut or black bean tree
- catastrophising — Present participle of catastrophise.
- catastrophizing — Present participle of catastrophize.
- centipede grass — a slow-growing grass, Eremochloa ophiuroides, introduced into the U.S. from China and used for lawns in warm areas.
- cervical plexus — a network of nerves branching from the spinal nerves of the neck region and innervating the neck, chest, diaphragm, and part of the face.
- ceteris paribus — other things being equal
- chairpersonship — a person who presides over a meeting, committee, board, etc.
- chemopsychiatry — the study and application of chemical substances in psychiatry
- chile saltpeter — sodium nitrate, esp. as found naturally in Chile and Peru
- chile saltpetre — a naturally occurring form of sodium nitrate: a soluble white or colourless mineral occurring in arid regions, esp in Chile and Peru
- chinese parsley — coriander leaves used as an herb; cilantro