20-letter words containing a, c, r, u, i
- net national product — the gross national product less allowance for depreciation of capital goods. Abbreviation: NNP.
- neurophysiologically — In terms of, or with regard to, neurophysiology.
- neuropsychiatrically — In terms of neuropsychiatry.
- neuropsychologically — In terms of or by means of neuropsychology.
- neutral interconnect — Network infrastructure where network service providers can freely exchange traffic without policy restrictions. Examples are the GIX (Global Internet Exchange) at MAE-East (A Metropolitan Area Ethernet around Washington), and the Ebone (European Backbone). There is currently (November 1993) no UK Neutral Interconnect.
- nonaccidental injury — damage, such as a bruise, burn, or fracture, deliberately inflicted on a child or an old person
- occupation franchise — the right of a tenant to vote in national and local elections
- occupation groupings — a system of classifying people according to occupation, based originally on information obtained by government census and subsequently developed by market research. The classifications are used by the advertising industry to identify potential markets. The groups are A, B, C1, C2, D, and E
- occupational therapy — a form of therapy in which patients are encouraged to engage in vocational tasks or expressive activities, as art or dance, usually in a social setting.
- ode on a grecian urn — a poem (1819) by Keats.
- officer of the guard — an officer, acting under the officer of the day, who is responsible for the instruction, discipline, and performance of duty of the guard in a post, camp, or station. Abbreviation: OG, O.G.
- omega-minus particle — a baryon with strangeness −3, isotopic spin 0, and negative charge; predicted from the mathematics of the Eightfold Way and subsequently discovered. Symbol: Ω −.
- ontological argument — an a priori argument for the existence of God, asserting that as existence is a perfection, and as God is conceived of as the most perfect being, it follows that God must exist; originated by Anselm, later used by Duns Scotus, Descartes, and Leibniz.
- operational calculus — a method for solving a differential equation by treating differential operators as ordinary algebraic quantities, thus obtaining a simpler problem.
- orthognathic surgery — the surgical correction of deformities or malpositions of the jaw.
- oscillating universe — a variant model of the closed universe in which the universe undergoes cycles of expansion and contraction.
- over-intellectualize — to seek or consider the rational content or form of.
- overenthusiastically — With excessive enthusiasm.
- paper qualifications — qualifications gained through official examinations, etc, rather than through experience
- parametric equalizer — an electronic device for cutting or boosting selected frequencies by continuous narrowing or widening of the frequencies to be filtered
- parametric equations — one of two or more equations expressing the location of a point on a curve or surface by determining each coordinate separately.
- particulars of claim — (in England) the first reading made by the claimant in a county court action, showing the facts upon which he or she relies in support of a claim and the relief asked for
- particulate scrubber — A particulate scrubber is a scrubber in which a liquid is mixed with the gas to collect solids.
- peculiar institution — black slavery in the southern U.S. before the Civil War.
- permonosulfuric acid — persulfuric acid (def 1).
- peroxysulphuric acid — a white hygroscopic crystalline unstable oxidizing acid. Formula: H2SO5
- perpendicular gothic — the style of Gothic architecture in England during the 14th and 15th centuries, characterized by tracery having vertical lines, a four-centred arch, and fan vaulting
- peruvian mastic tree — a pepper tree, Schinus molle.
- 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)
- pipeline burst cache — (hardware, storage) (PB Cache) A synchronous cache built from pipelined SRAM. A cache in which reading or writing a new location takes multiple cycles but subsequent locations can be accessed in a single cycle. On Pentium systems in 1996, pipeline burst caches are frequently used as secondary caches. The first 8 bytes of data are transferred in 3 CPU cycles, and the next 3 8-byte pieces of data are transferred in one cycle each.
- polyanthus narcissus — a Eurasian amaryllidaceous plant, Narcissus tazetta, having clusters of small yellow or white fragrant flowers
- potassium bichromate — an orange-red, crystalline, water-soluble, poisonous powder, K 2 Cr 2 O 7 , used chiefly in dyeing, photography, and as a laboratory reagent.
- 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
- 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
- prefecture apostolic — a territory in the early stage of missionary development.
- 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.
- probability function — the function the values of which are probabilities of the distinct outcomes of a discrete random variable
- 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
- property speculation — the buying or selling of property in the hope of deriving capital gains
- proportional counter — a radiation counter in which the strength of each electric pulse generated per count is proportional to the energy of the particle or photon producing the pulse, alpha particles producing a different electric pulse from beta rays.
- prosecuting attorney — the public officer in a county, district, or other jurisdiction charged with carrying on the prosecution in criminal proceedings.
- public administrator — an official of a city, county, or state government.
- put in an appearance — the act or fact of appearing, as to the eye or mind or before the public: the unannounced appearance of dinner guests; the last appearance of Caruso in Aïda; her first appearance at a stockholders' meeting.
- pyroligneous alcohol — methyl alcohol.
- quarantine anchorage — an anchorage for ships awaiting a pratique.
- quasi-stellar object — quasar. Abbreviation: QSO.
- rachel louise carson — Christopher ("Kit") 1809–68, U.S. frontiersman and scout.
- receivables turnover — A receivables turnover is a measure of cash flow that is calculated by dividing net credit sales by average accounts receivable.
- reciprocal insurance — insurance in which members of a reciprocal exchange, acting through an attorney-in-fact, insure themselves and each other.