17-letter words containing c, e, t, y
- phenyl isocyanate — a liquid reagent, C 7 H 5 NO, having an unpleasant, irritating odor: used chiefly for identifying alcohols and amines.
- phenylacetic acid — a white crystalline, aromatic acid, C 8 H 8 O 2 , used in the manufacture of penicillin and in perfumes.
- pick the eyes out — to select the best parts or pieces (of)
- pinckney's treaty — an agreement in 1795 between Spain and the U.S. by which Spain recognized the 31st parallel as the southern boundary of the U.S. and permitted free navigation of the Mississippi to American ships.
- pipeline capacity — The pipeline capacity is the volume of oil or gas which is needed to maintain a full pipeline.
- pituitary extract — a preparation of the pituitary gland, used in medicine for the therapeutic effects of its hormones
- 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.
- political economy — a social science dealing with political policies and economic processes, their interrelations, and their influence on social institutions.
- political liberty — the right to express oneself freely and effectually regarding the conduct, makeup, and principles of the government under which one lives.
- 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
- polyvinyl acetate — a colorless, odorless, nontoxic, transparent, thermoplastic, water-insoluble resin used as an adhesive in certain paints and as an intermediate in the synthesis of polyvinyl acetal and polyvinyl alcohol.
- potassium cyanide — a white, granular, water-soluble, poisonous powder, KCN, having a faint almondlike odor, used chiefly in metallurgy and photography.
- 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 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.
- 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.
- 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.
- psychoeducational — designating or of psychological methods, as intelligence tests, used in evaluating learning ability
- psychometric test — a test designed to test a person's mental state, personality and thought processes
- 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
- publicity-seeking — eager to attract publicity
- 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.
- 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.
- quantum chemistry — the application of quantum mechanics to the study of chemical phenomena.
- radioactive decay — decay (def 8).
- 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
- refractory period — a short period after a nerve or muscle cell fires during which the cell cannot respond to additional stimulation.
- 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 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
- 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.
- rich site summary — (web, standard) (RSS, blog, feed) A family of standard web document types containing regularly updated, short articles or news items. RSS documents (generally called "RSS feeds", "news feeds" or just "feeds") can be read with an RSS reader like BottomFeeder or Feedly. These are sometimes called "aggregators" because they combine multiple RSS feeds which the user can browse as a single list. The RSS reader tracks which articles the use has read, and is typically set to show only new articles, hence the idea of a "feed" or flow of new items. Most RSS feeds are based on RDF. RDF is a structured document format for describing textual resources such as news articles available on the web. RSS originally stood for "RDF Site Summary" as it was designed to provide short descriptions of (changes to) a website. Because it provides a standard way to deliver, or "syndicate", news or updates from one site to another, RSS is sometimes expanded as "Really Simple Syndication". It is closely associated with blogs, most of which provide an RSS feed of articles.
- rocket technology — the technology of the design, operation, maintenance, and launching of rockets
- safety inspection — an inspection of a place carried out to ensure that it is safe and not dangerous