17-letter words containing c, r, y, p

polyacrylonitrile — a polymer of acrylonitrile used in the manufacture of Orlon and other synthetic textiles.
polymorphonuclear — (of a leukocyte) having a lobulate nucleus.
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
primary processes — the generally unorganized mental activity characteristic of the unconscious and occurring in dreams, fantasies, and related processes.
primary structure — Biochemistry. the basic sequence of amino acids in a polypeptide or protein.
priority check-in — Priority check-in at a hotel is an arrangement which allows a guest to check in without waiting in a line.
private secretary — a person who attends to the individual or confidential correspondence, files, etc., of a business executive, official, or the like.
probability curve — a curve that describes the distribution of probability over the values of a random variable.
product liability — the responsibility of a manufacturer for injury or loss caused by its product.
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.
proficiency badge — an insignia or device granted by the Girl Scouts and worn especially on a uniform to indicate special achievement.
protective system — protectionism (def 1).
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.
psychic energizer — Pharmacology. antidepressant (def 2).
psychographically — Psychology. a graph indicating the relative strength of the personality traits of an individual.
psychometric test — a test designed to test a person's mental state, personality and thought processes
psychoprophylaxis — Lamaze method.
psychotherapeutic — psychotherapy.
pterygoid process — either of two long bony plates extending downwards from each side of the sphenoid bone within the skull
publicity officer — a person who is employed to get publicity for an organization, or to provide information about it
purple chokeberry — See under chokeberry (def 1).
pyroligneous acid — a yellowish, acidic, water-soluble liquid, containing about 10 percent acetic acid, obtained by the destructive distillation of wood: used for smoking meats.
pyrosulfuric acid — a strong, crystalline acid, H2S2O7, prepared commercially as a heavy, oily, fuming liquid: used in making explosives and dyes, as a sulfating agent, etc.
pythagorean scale — the major scale as derived acoustically by Pythagoras from the perfect fifth.
quality paperback — a softbound book that is usually larger and more expensive than a mass market paperback and is sold primarily in bookstores as a trade book.
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
refractory period — a short period after a nerve or muscle cell fires during which the cell cannot respond to additional stimulation.
repertory catalog — a catalog containing bibliographic records that indicate locations of materials in more than one library or in several units of one library.
repertory company — repertory (def 2).
repertory society — a group that supports amateur performances of plays by its members
republic of yemen — Republic of, a country in S Arabia, formed in 1990 by the merger of the Yemen Arab Republic and the People's Democratic Republic of Yemen. 207,000 sq. mi. (536,130 sq. km). Capital: Aden.
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.
respiratory tract — the passages through which air enters and leaves the body
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.
safety precaution — a precaution that is taken in order to ensure that something is safe and not dangerous
scheme repository — A collection of free Scheme programs.
school playground — school's outdoor recreation area
secondary process — the conscious mental activity and logical thinking controlled by the ego and influenced by environmental demands.
secondary product — a product that is not the main product of an industry; a by-product
shortcrust pastry — a basic type of pastry that is made with half the quantity of fat to flour, and has a crisp but crumbly texture
spastic paralysis — a condition in which the muscles affected are marked by tonic spasm and increased tendon reflexes.
spatial frequency — the measure of fine detail in an optical image in terms of cycles per millimetre
spectrophotometry — an instrument for making photometric comparisons between parts of spectra.
spectroscopically — an optical device for producing and observing a spectrum of light or radiation from any source, consisting essentially of a slit through which the radiation passes, a collimating lens, and an Amici prism.
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.

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