19-letter words containing p, u, c, e, r
- reciprocity failure — a failure of the two exposure variables, light intensity and exposure time, to behave in a reciprocal fashion at very high or very low values
- reconceptualization — to form into a concept; make a concept of.
- recording equipment — devices used for sound reproduction
- reduction potential — (in a galvanic cell) the potential of the electrode at which reduction occurs.
- republic of ireland — John, 1838–1918, U.S. Roman Catholic clergyman and social reformer, born in Ireland: archbishop of St. Paul, Minn., 1888–1918.
- republic of letters — the collective body of literary people.
- republic of vietnam — the name (from 1955–75) for South Vietnam, as an independent republic, following the division of the country in 1954 into North Vietnam and South Vietnam
- republique malgache — French name of Malagasy Republic.
- reserved occupation — in time of war, an occupation from which one will not be called up for military service
- ring up the curtain — to begin a theatrical performance
- ruffini's corpuscle — an end organ of certain sensory neurons that branches out parallel to the skin and responds to steady pressure.
- scale down (or up) — to reduce (or increase), often according to a fixed ratio or proportion
- setting-up exercise — any of a set of exercises, as deep knee bends and push-ups, for improving one's posture, muscle tone, or limberness, or for reducing one's weight.
- sexual reproduction — reproduction involving the union of gametes.
- sharp-focus realism — photorealism.
- simple closed curve — a curve that is closed and that has no loops or points missing; a curve for which there exists a homeomorphism mapping it to a circle.
- slugging percentage — a number expressing a player's average effectiveness in making extra-base hits, calculated by dividing the total number of bases (from all singles, doubles, triples, and home runs) by the number of official at bats
- sodium hypochlorite — a pale-green, crystalline compound, NaOCl, unstable in air, soluble in cold water, decomposes in hot water: used as a bleaching agent for paper and textiles, in water purification, in household use, and as a fungicide.
- southern crab apple — a tree, Malus angustifolia, of the eastern U.S., having oblong leaves, fragrant, pink or rose-colored flowers, and small, round, yellow-green fruit.
- specular reflection — Specular reflection is reflection of heat or light in which the angles of different parts of the surface are important.
- sphere of influence — any area in which one nation wields dominant power over another or others.
- stationery cupboard — a cupboard where things like paper, pens and paper clips are kept
- strict counterpoint — the application of the rules of counterpoint as an academic exercise
- subnuclear particle — any of the elementary particles, including those that do not exist in stable matter but appear as a result of high-energy collisions of other particles or nuclei.
- substitution cipher — a cipher that replaces letters of the plain text with another set of letters or symbols.
- subtractive process — a process of color photography in which the colors are formed by combination of cyan, yellow, and magenta lights.
- succession of crops — the continuous cultivation of a crop throughout a season by successive plantings or by the use of varieties with different rates of growth.
- supercritical fluid — A supercritical fluid is a fluid at a temperature and pressure at which there is no difference between liquid and gas.
- superhigh frequency — any frequency between 3000 and 30,000 megahertz. Abbreviation: SHF.
- superiority complex — an exaggerated feeling of one's own superiority.
- surface effect ship — a large, ship-size air cushion vehicle operated over water.
- surplus reinsurance — Surplus reinsurance is reinsurance of amounts over a specified amount of insurance.
- teacher-pupil ratio — the number of teachers relative to the number of pupils in a particular school
- telescopic umbrella — an umbrella having parts that telescope
- the buck stops here — the ultimate responsibility lies here
- theatrical producer — a person who is responsible for all aspects of a theatrical production
- therapeutic cloning — the permitted creation of cloned human tissues for surgical transplant
- to be up shit creek — to be in an extremely bad situation
- to the prejudice of — to the detriment of
- triple counterpoint — invertible counterpoint involving three transposable voices.
- trooping the colour — a military ceremony, performed by regiments of the British army and the Commonwealth, in which the regimental colour or flag is marched past ranks of troops
- trumpet honeysuckle — an American honeysuckle, Lonicera sempervirens, having spikes of large, tubular flowers, deep-red outside and yellow within.
- trusteeship council — a United Nations body that supervises the government of a territory by a foreign country
- tuamotu archipelago — a group of about 80 coral islands in the S Pacific, in French Polynesia. Pop: 15 973 (2002; including the Gambier Islands). Area: 860 sq km (332 sq miles)
- tussock caterpillar — the larva of a tussock moth.
- ultracrepidarianism — noting or pertaining to a person who criticizes, judges, or gives advice outside the area of his or her expertise: The play provides a classic, simplistic portrayal of an ultracrepidarian mother-in-law.
- under police escort — If you go somewhere or are taken somewhere under police escort, you go there accompanied by a police escort.
- universal recipient — a person with blood type AB, able to receive blood from a person of any blood type but able to donate blood only to a person with the same blood type
- unnatural practices — acts which are deemed to be contrary to expected standards of human behaviour
- upper carboniferous — Pennsylvanian (defs 2, 4).