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17-letter words containing e, n, t, r, y, c

  • pocket dictionary — a small portable dictionary
  • point reyes lilac — a prostrate shrub, Ceanothus gloriosus, of southern California, having leathery, roundish leaves and purplish or deep-blue flowers.
  • polyacrylonitrile — a polymer of acrylonitrile used in the manufacture of Orlon and other synthetic textiles.
  • polystyrene chips — small pieces of polystyrene used for insulating or packing
  • predatory pricing — If a company practises predatory pricing, it charges a much lower price for its products or services than its competitors in order to force them out of the market.
  • presentation copy — a copy of a book given by the publisher or author
  • primary education — junior, elementary schooling
  • priority check-in — Priority check-in at a hotel is an arrangement which allows a guest to check in without waiting in a line.
  • production system — (programming)   A production system consists of a collection of productions (rules), a working memory of facts and an algorithm, known as forward chaining, for producing new facts from old. A rule becomes eligible to "fire" when its conditions match some set of elements currently in working memory. A conflict resolution strategy determines which of several eligible rules (the conflict set) fires next. A condition is a list of symbols which represent constants, which must be matched exactly; variables which bind to the thing they match and "<> symbol" which matches a field not equal to symbol. Example production systems are OPS5, CLIPS, flex.
  • protocol analyser — (communications, hardware, networking, testing, tool)   Any device that captures and interprets the network traffic between two or more connected computer systems. The traffic can then be decoded so that it is possible to see what processes are occurring. By examining the flow of traffic, protocol analysers can be used to find out where problems (such as bottlenecks or the failure of a network device) are on a LAN. Advanced protocol analysers can also provide statistics on the traffic that can help to identify trends that may in future lead to further problems with the network.
  • pythagorean scale — the major scale as derived acoustically by Pythagoras from the perfect fifth.
  • quality assurance — a system for ensuring a desired level of quality in the development, production, or delivery of products and services: Quality assurance for nursing homes begins with a set of standards. Abbreviation: QA.
  • quantum chemistry — the application of quantum mechanics to the study of chemical phenomena.
  • reality principle — the motivating force or mechanism by which the child, who has previously sought immediate gratification of all wishes, realizes that gratification must sometimes be deferred or forgone.
  • recovery position — a position in which an unconscious person can be lain on the floor, which minimises them from further risk
  • recrystallization — to become crystallized again.
  • recumbent bicycle — a type of bicycle that is ridden in a reclining position
  • regulated tenancy — (in Britain) the letting of a dwelling by a nonresident private landlord, usually at a registered fair rent, from which the landlord cannot evict the tenant without a possession order from a court
  • repertory company — repertory (def 2).
  • respiratory chain — a series of mitochondrial proteins that transport electrons of hydrogen, released in the Krebs cycle, from acetyl coenzyme A to inhaled oxygen to form H 2 O: the energy released in the process is conserved as ATP.
  • reticulate python — a python, Python reticulatus, of southeastern Asia and the East Indies, sometimes growing to a length of 32 feet (10 meters): usually considered to be the largest snake in the world.
  • rocket technology — the technology of the design, operation, maintenance, and launching of rockets
  • safety precaution — a precaution that is taken in order to ensure that something is safe and not dangerous
  • scientific theory — a coherent group of propositions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experiment or observation: the scientific theory of evolution.
  • secondary battery — storage battery.
  • secondary boycott — a boycott by union members against their employer in order to induce the employer to bring pressure on another company involved in a labor dispute with the union.
  • secondary contact — communication or relationship between people characterized by impersonal and detached interest on the part of those involved.
  • secondary product — a product that is not the main product of an industry; a by-product
  • secondary quality — one of the qualities attributed by the mind to an object perceived, such as color, temperature, or taste.
  • secretary-general — the head or chief administrative officer of a secretariat.
  • shorthold tenancy — letting of a dwelling for between one and five years at a fair rent
  • spatial frequency — the measure of fine detail in an optical image in terms of cycles per millimetre
  • spectrum analyser — an instrument that splits an input waveform into its frequency components, which are then displayed
  • spectrum analysis — the determination of the constitution or condition of bodies and substances by means of the spectra they produce.
  • stand on ceremony — to insist on or act with excessive formality
  • stray capacitance — undesired capacitance in equipment, occurring between the wiring, between the wiring and the chassis, or between components and the chassis
  • subclavian artery — either of a pair of arteries, one on each side of the body, that carry the main supply of blood to the arms.
  • superconductivity — the phenomenon of almost perfect conductivity shown by certain substances at temperatures approaching absolute zero. The recent discovery of materials that are superconductive at temperatures hundreds of degrees above absolute zero raises the possibility of revolutionary developments in the production and transmission of electrical energy.
  • temporary account — A temporary account is an account which is closed out at the end of the year.
  • tenancy agreement — property rental contract
  • terminal capacity — The terminal capacity is the volume which can be stored in a terminal (= building or area with tanks).
  • terminal velocity — Physics. the velocity at which a falling body moves through a medium, as air, when the force of resistance of the medium is equal in magnitude and opposite in direction to the force of gravity. the maximum velocity of a body falling through a viscous fluid.
  • tertiary consumer — a carnivore at the topmost level in a food chain that feeds on other carnivores; an animal that feeds only on secondary consumers.
  • the black country — the formerly heavily industrialized region of central England, northwest of Birmingham
  • to risk your neck — If you say that someone is risking their neck, you mean they are doing something very dangerous, often in order to achieve something.
  • top-security wing — a wing of a prison, mental hospital, etc that has a very high level of precautions against escape
  • trichloroethylene — a colorless, poisonous liquid, C 2 HCl 3 , used chiefly as a degreasing agent for metals and as a solvent, especially in dry cleaning, for fats, oils, and waxes. Abbreviation: TCE.
  • turbidity current — a turbid, dense current of sediments in suspension moving along the slope and bottom of a lake or ocean.
  • tympanic membrane — eardrum.
  • tyrant flycatcher — flycatcher (def 2).
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