22-letter words containing r, i, d, c, u, l
- phosphorus trichloride — a clear, colorless, fuming liquid, PCl 3 , used chiefly in organic synthesis as a chlorinating agent.
- 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.
- public domain software — public domain
- 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).
- rectangular coordinate — Usually, rectangular coordinates. either of two Cartesian coordinates in which the axes meet at right angles.
- reproductive isolation — the conditions, as physiological or behavioral differences or geographical barriers, that prevent potentially interbreeding populations from cross-fertilization.
- retrograde ejaculation — ejaculation of semen backward toward the bladder instead of forward through the urethra.
- revolutionary calendar — the calendar of the French First Republic, adopted in 1793 and abandoned in 1805, consisting of 12 months, each of 30 days, and 5 intercalary days added at the end of the year (6 every fourth year). The months, beginning at the autumnal equinox, are Vendémiaire, Brumaire, Frimaire, Nivôse, Pluviôse, Ventôse, Germinal, Floréal, Prairial, Messidor, Thermidor, and Fructidor.
- round-table discussion — a discussion held at a meeting of parties or people on equal terms
- rural delivery service — mail delivery operated primarily to deliver and collect mail in rural communities with no other convenient postal facilities.
- rural district council — (in England and Wales from 1888 to 1974 and Northern Ireland from 1898 to 1973) a group of people elected to govern a rural division of a county
- saturday night special — a cheap, small-caliber handgun that is easily obtainable and concealable.
- saturday-night special — a cheap, small-caliber handgun that is easily obtainable and concealable.
- save the children fund — a development agency which raises money for deprived children around the world
- secondary articulation — coarticulation (def 2).
- secondary-articulation — concomitance of articulation, as in fro, ostensibly a succession of three discrete sounds but physically a single articulation (f-) blending into a coarticulation (-fr-), which blends into an articulation (-r-), which blends into a coarticulation (-ro-), which blends into an articulation (-o).
- sick building syndrome — an illness caused by exposure to pollutants or germs inside an airtight building.
- simultaneous broadcast — a programme, etc, broadcast simultaneously on radio and television
- split-dollar insurance — life insurance in which someone helps pay the premiums for another, as when an employer contributes to the premiums of an employee's policy.
- supreme judicial court — (often initial capital letters) the highest court in some states, as Massachusetts and Maine.
- under the influence of — If you are under the influence of someone or something, you are being affected or controlled by them.
- unidirectional current — direct current
- universal product code — a bar code that indicates price, product classification, etc., and can be read electronically, as at checkout counters in supermarkets. Abbreviation: UPC.
- unprofessional conduct — activity that is contrary to the accepted code of conduct of a profession
- urban district council — a council of an urban district that, in conjunction with a county council, has responsibilities for local government issues
- world communion sunday — the first Sunday in October, during which members of ecumenical churches throughout the world celebrate Holy Communion, especially to affirm their unity in Christ.