22-letter words containing p, u, r, c

gum bichromate process — a contact printing method in which the image is formed on a coating of sensitized gum containing a suitable colored pigment and potassium or ammonium dichromate.
hague peace conference — a meeting held at The Hague, Netherlands, in 1899, that established The Hague Permanent Court of Arbitration.
hybrid multiprocessing — (parallel) (HMP) The kind of multitasking which OS/2 supports. HMP provides some elements of symmetric multiprocessing, using add-on IBM software called MP/2. OS/2 SMP was planned for release in late 1993.
intermetallic compound — a compound of two or more metals.
jacquard, joseph-marie — Joseph-Marie Jacquard
java community process — (project) (JCP) An organization controlled by Sun Microsystems to further the growth of the Java language and runtime. The JCP produces standards called Java Standard Requests, which are "requests" in the same sense as RFCs.
landscape architecture — the art of arranging or modifying the features of a landscape, an urban area, etc., for aesthetic or practical reasons.
liquid crystal display — (hardware) (LCD) An electro-optical device used to display digits, characters or images, commonly used in digital watches, calculators, and portable computers. The heart of the liquid crystal display is a piece of liquid crystal material placed between a pair of transparent electrodes. The liquid crystal changes the phase of the light passing through it and this phase change can be controlled by the voltage applied between the electrodes. If such a unit is placed between a pair of plane polariser plates then light can pass through it only if the correct voltage is applied. Liquid crystal displays are formed by integrating a number of such cells, or more usually, by using a single liquid crystal plate and a pattern of electrodes. The simplest kind of liquid crystal displays, those used in digital watches and calculators, contain a common electrode plane covering one side and a pattern of electrodes on the other. These electrodes can be individually controlled to produce the appropriate display. Computer displays, however, require far too many pixels (typically between 50,000 and several millions) to make this scheme, in particular its wiring, feasible. The electrodes are therefore replaced by a number of row electrodes on one side and column electrodes on the other. By applying voltage to one row and several columns the pixels at the intersections are set. The pixels being set one row after the other, in passive matrix displays the number of rows is limited by the ratio of the setting and fading times. In the setup described above (known as "twisted nematic") the number of rows is limited to about 20. Using an alternative "supertwisted nematic" setup VGA quality displays (480 rows) can be easily built. As of 1995 most notebook computers used this technique. Fading can be slowed by putting an active element, such as a transistor, on the top of each pixel. This "remembers" the setting of that pixel. These active matrix displays are of much better quality (as good as CRTs) but are much more expensive than the passive matrix displays. LCDs are slimmer, lighter and consume less power than the previous dominant display type, the cathode ray tube, hence their importance for portable computers.
lord justice of appeal — an ordinary judge of the Court of Appeal
mcculloch-pitts neuron — (artificial intelligence) The basic building block of artificial neural networks. It receives one or more inputs and produces one or more identical outputs, each of which is a simple non-linear function of the sum of the inputs to the neuron. The non-linear function is typically a threshhold or step function which is usually smoothed (i.e. a sigmoid) to facilitate learning.
mecklenburg-vorpommern — German name of Mecklenburg–Western Pomerania.
multiplicative inverse — reciprocal (def 9).
non-constructive proof — (logic) (Or "existence proof") A proof that something exists that does not provide an example of that thing or a method for finding an example. (A constructive proof does provide such an example or method). For example, for any pair of finite real numbers n < 0 and p > 0 there exists a real number 0 < k < 1 such that f(k) = (1-k)*n + k*p = 0. A non-constructive proof might proceed by observing that as k changes continuously from 0 to 1, f(k) changes continuously from n to p and, since they lie either side of zero, f(k) must pass through zero for some intermediate value of k. This proof does not tell us what that value of k is, only that it exists.
nonspecific urethritis — nongonococcal urethritis.
nonspecular reflection — the diffuse reflection of sound or light waves
occupational therapist — professional who assists with rehabilitation
open network computing — (ONC) Sun's network protocols.
open source definition — (standard) (OSD) Definition of distribution terms for open source software, promoted by the Open Source Initiative.
open source initiative — (body) (OSI) An organisation dedicated to managing and promoting the Open Source Definition for the good of the community.
operating instructions — instructions on how to use something (such an electrical appliance, etc)
out-of-body experience — a vivid feeling of being detached from one's body, usually involving observing it and its environment from nearby
particular affirmative — a proposition of the form “Some S is P.” Symbol: I.
peanut-butter sandwich — a sandwich with a filling of peanut-butter
percussive maintenance — (jargon) The fine art of whacking a device to get it working, possibly using a fine adjuster.
phosphorus trichloride — a clear, colorless, fuming liquid, PCl 3 , used chiefly in organic synthesis as a chlorinating agent.
picture of dorian gray — a novel (1891) by Oscar Wilde.
polymyalgia rheumatica — a chronic inflammatory disease, common among older persons, characterized by recurrent episodes of muscle pain and stiffness, sometimes leading to cardiovascular complications or blindness.
portuguese east africa — former name of Mozambique (def 1).
portuguese west africa — a republic in SW Africa: formerly an overseas province of Portugal; gained independence Nov. 11, 1975. 481,226 sq. mi. (1,246,375 sq. km). Capital: Luanda.
potassium ferricyanide — a bright-red, crystalline, water-soluble, poisonous solid, K 3 Fe(CN) 6 , used chiefly in the manufacture of pigments, as Prussian blue, and of paper, especially blueprint paper.
potassium ferrocyanide — a lemon-yellow, crystalline, water-soluble solid, K 4 Fe(CN) 6 ⋅3H 2 O, used chiefly in casehardening alloys having an iron base and in dyeing wool and silk.
price variation clause — a clause in a contract allowing the seller to vary the selling price under certain conditions
private-equity company — an organization that uses private equity to gain control of and manage companies
privileged instruction — A machine code instruction that may only be executed when the processor is running in supervisor mode. Privileged instructions include operations such as I/O and memory management.
procurement department — the department of (a company, organization, etc) responsible for purchasing and buying
productivity agreement — an agreement whereby the employees of an organization agree to changes which are intended to improve productivity in return for an increase in pay or other benefits
programmed instruction — a progressively monitored, step-by-step teaching method, employing small units of information or learning material and frequent testing, whereby the student must complete or pass one stage before moving on to the next.
pronunciation spelling — a spelling intended to match a certain pronunciation more closely than the traditional spelling does, as gonna for going to , kinda for kind of (meaning “rather”), git for get , or lite for light.
propositional calculus — propositional logic
propositional function — sentential function.
public domain software — public domain
public housing project — a group of homes for poorer families which is funded and controlled by the local government
public service vehicle — a bus or coach
pulmonary tuberculosis — tuberculosis of the lungs.
punctuated equilibrium — theory of, Biology. a hypothesis holding that the evolution of species proceeds in a characteristic pattern of relative stability for long periods of time interspersed with much shorter periods during which many species become extinct and new species emerge. Also called punctuationalism. Compare gradualism (def 3).
pure food and drug act — a law passed in 1906 to remove harmful and misrepresented foods and drugs from the market and regulate the manufacture and sale of drugs and food involved in interstate trade.
received pronunciation — the pronunciation of British English considered to have the widest geographical distribution and the fewest regional peculiarities, originally the pronunciation of educated speakers in southern England and traditionally that used in the public schools and at Oxford and Cambridge universities, adopted by many speakers elsewhere in England and widely used in broadcasting. Abbreviation: RP.
reproduction furniture — furniture that is made in an imitation or copy of a past style
reproductive isolation — the conditions, as physiological or behavioral differences or geographical barriers, that prevent potentially interbreeding populations from cross-fertilization.
restricted users group — a group of people who, with knowledge of a secret password, or by some other method, have access to restricted information stored in a computer

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