15-letter words containing p, i, t, r
- anticlinal trap — An anticlinal trap is a structural trap which is closed by an anticline (= an arch-shaped fold in rock, in which rock layers are upwardly convex).
- antidepressants — of or relating to a substance that is used in the treatment of mood disorders, as characterized by various manic or depressive affects.
- antiperistalses — Plural form of antiperistalsis.
- antiperistalsis — contractions of the intestine that force the contents in the opposite direction to the normal
- antiperistaltic — reversed peristaltic action of the intestines, by which their contents are carried upward.
- antiperspirants — Plural form of antiperspirant.
- antipornography — opposed to or acting against pornography
- antiprogressive — opposed to or acting against progression in society
- antitranspirant — any substance that decreases transpiration and, usually, photosynthesis
- aphrodite terra — a large plateau region that stretches approximately halfway around the middle latitude of Venus.
- apical meristem — meristem at the apex of a root or shoot.
- apolipoproteins — Plural form of apolipoprotein.
- apollo asteroid — one of a number of asteroids whose orbits cross that of the earth.
- apostle pitcher — a stoneware pitcher decorated in relief with figures of the apostles.
- apostolic vicar — vicar apostolic.
- apostrophically — (rhetoric) Using apostrophe; with sudden exclamatory dialogue.
- appeal tribunal — An appeal tribunal is a special court or committee that is formed to reconsider a decision made by another court or committee.
- apprentice work — work done when young and a novice
- apprenticeships — Plural form of apprenticeship.
- approach lights — lights on the runway that guide planes coming in to land
- approachability — capable of being approached; accessible.
- appropinquation — the action of approaching
- appropriateness — suitable or fitting for a particular purpose, person, occasion, etc.: an appropriate example; an appropriate dress.
- approval rating — approval of a politician as shown by opinion polls
- approximateness — The quality of being approximate.
- arc de triomphe — the triumphal arch in Paris begun by Napoleon I to commemorate his victories of 1805–6 and completed in 1836
- arch of triumph — Arc de Triomphe.
- archiepiscopate — the rank, office, or term of office of an archbishop
- arms inspection — the official checking of a country's weapons and other military equipment, usually to check that international agreements have been respected
- 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.
- astrophysically — from an astrophysical point of view
- astrophysicists — Plural form of astrophysicist.
- 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.
- autolithography — a lithographic technique by which the artist draws or traces with a brush and pen directly on a stone or plate.
- automorphically — in an automorphic manner
- autoradiographs — Plural form of autoradiograph.
- autoradiography — the technique or process of making autoradiographs.
- autotetraploidy — the generation of the tetraploid state, created by the fusing of two nuclei from the same species
- autotrophically — through an autotrophic process
- 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
- backup rotation — (operating system) Any system for re-using backup media, e.g. magnetic tape. One extreme would be to use the same media for every backup (e.g. copy disk A to disk B), the other extreme would be to use new media every time. The trade-off is between the cost of buying and storing media and the ability to restore any version of any file. One example is the Grandfather, Father, Son (GFS) scheme.
- 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.