20-letter words containing r, o, d, e
- phosphoric anhydride — phosphorus pentoxide.
- phosphorus pentoxide — a white, deliquescent, crystalline powder, P 2 O 5 , that, depending upon the amount of water it absorbs, forms orthophosphoric acid, metaphosphoric acid, or pyrophosphoric acid, produced by the burning of phosphorus in dry air: used in the preparation of phosphoric acids, as a drying and dehydrating agent, and in organic synthesis.
- physical double star — two stars that appear as one if not viewed through a telescope with adequate magnification, such as two stars that are separated by a great distance but are nearly in line with each other and an observer (optical double star) or those that are relatively close together and comprise a single physical system (physical double star)
- pickwickian syndrome — an abnormality characterized by extreme obesity accompanied by sleepiness, hypoventilation, and polycythemia.
- pico della mirandola — Count Giovanni [jaw-vahn-nee] /dʒɔˈvɑn ni/ (Show IPA), 1463–94, Italian humanist and writer.
- polaroid land camera — any of several types of camera yielding a finished print by means of a special developing and processing technique that occurs inside the camera and takes only a few seconds to complete
- polyvinylidene resin — any of the class of thermoplastic resins derived by the polymerization or copolymerization of a polyvinylidene compound, used similarly to the polyvinyl resins.
- polyvinylpyrrolidone — a white, amorphous, water-soluble powder, (C 6 H 9 NO) n , used chiefly as a vehicle in the manufacture of pharmaceuticals.
- portuguese water dog — one of a breed of medium-sized dogs originally developed to assist Portuguese fishermen and having a profuse black or brown coat with or without white markings and webbed feet.
- post-order traversal — traversal
- postal delivery zone — zone (def 10).
- postcode prescribing — the practice of prescribing more or less expensive and effective medical treatments to patients depending on where they live in a country, and which treatments their health board is willing and able to provide
- posted write-through — A cache with a posted write-through policy (e.g. Intel 80386) delays the write-back to main memory until the bus is not in use.
- postgraduate student — a student who has obtained a degree from a university, etc, and is pursuing studies for a more advanced qualification
- postnatal depression — a form of clinical depression that occurs in mothers after the birth of a baby
- potassium dichromate — an orange-red crystalline soluble solid substance that is a good oxidizing agent and is used in making chrome pigments and as a bleaching agent. Formula: K2Cr2O7
- potential difference — voltage
- pound cost averaging — a method of accumulating capital by investing a fixed sum in a particular security at regular intervals, in order to achieve an average purchase price below the arithmetic average of the market prices on the purchase dates
- powhatan confederacy — a network of Algonquian-speaking Indian settlements in Virginia that was ruled by Powhatan.
- poza rica de hidalgo — a city in N Veracruz, in E Mexico.
- predicate nominative — (in Latin, Greek, and certain other languages) a predicate noun or adjective in the nominative case.
- prestressed concrete — concrete reinforced with wire strands, pretensioned or post-tensioned within their elastic limit to give an active resistance to loads.
- preventive detention — the holding of someone in jail or in an institution because he or she is regarded as a danger to the community.
- price discrimination — the practice of offering identical goods to different buyers at different prices, when the goods cost the same.
- price-dividend ratio — the ratio of the price of a share on a stock exchange to the dividends per share paid in the previous year, used as a measure of a company's potential as an investment
- pride of the morning — light mist or precipitation observed at sea in the morning and regarded as indicating a fine day.
- prince rupert's drop — a glass bead in the shape of a teardrop, a by-product of the glass-making process, formed by molten glass falling into water. The body of the drop can withstand great force, for example a hammer blow, but the whole will explode if the tail is nipped or the surface scored
- prince william sound — a sound in the Gulf of Alaska, on the S coast of Alaska: S end of Trans-Alaska oil pipeline at port of Valdez.
- procedural agreement — regulations agreed between the parties to collective bargaining, defining the bargaining units, bargaining scope, procedures for collective bargaining, and the facilities to be provided to trade union representatives
- production agreement — a contract concerning the production or manufacture of something
- prohibited substance — a substance, such as a drug, etc, that is banned or forbidden by law or other authority
- proof of the pudding — the true value or quality of something, as seen when it is experienced, tried, or put to use: The proof of the pudding for a business is what customers say about it.
- property development — the business of buying land and buildings and then making improvements to them so that their selling price exceeds the price paid for them
- proprietary medicine — a drug or agent manufactured and distributed under a trade name
- prosthetic dentistry — prosthodontics.
- pseudoparenchymatous — (in certain fungi and red algae) a compact mass of tissue, made up of interwoven hyphae or filaments, that superficially resembles plant tissue.
- public record office — an institution in which official records are stored and kept available for inspection by the public
- put the hard word on — to ask or demand something from
- quadrantal corrector — either of two soft-iron spheres attached to each side of a binnacle, intended to correct the compass deviation (quadrantal deviation) resulting from magnetism from ferrous metal in a ship.
- quantum field theory — any theory in which fields are treated by the methods of quantum mechanics; each field can then be regarded as consisting of particles of a particular kind, which may be created and annihilated.
- queensland arrowroot — a South American and West Indian herb, Canna edulis, having large sheathing leaves, red flowers, and edible rhizomes.
- radiation resistance — the resistive component of the impedance of a radio transmitting aerial that arises from the radiation of power
- radio interferometer — any of several different types of instrumentation designed to observe interference patterns of electromagnetic radiation at radio wavelengths: used in the discovery and measurement of radio sources in the atmosphere.
- random access memory — RAM.
- random-access memory — RAM.
- rapid reaction force — a force that can be deployed swiftly to a site of conflict or potential conflict
- raynaud's phenomenon — a secondary circulatory disorder, often associated with a primary vascular disease, characterized by changes of blood flow resulting in white, bluish, or red hands and feet
- read the riot act to — to command to stop doing something regarded as wrong, under threat of punishment
- read-eval-print loop — (language, LISP, programming) (REPL) A programming structure within LISP which repeatedly reads a form from the user, evaluates it, and displays the result. A read-eval-print loop forms the basis of the Top-Level shell that programmers of the LISP family of languages interact with. In many dialects of LISP a very simple REPL could be implemented as: (loop (print (eval (read)))). (2003-06-23)
- recommended standard — (standard) (RS) A series of EIA standards including EIA-232.