17-letter words containing c, a, t, e, r, o
- opisthobranchiate — (zoology) Of or pertaining to the Opisthobranchiata.
- optical carrier 3 — (networking) (OC-3) A SONET rate of 3 * 51.84 = 155.52 megabits per second, which matches STS-3.
- optical carrier n — (networking) (OC-n) A SONET rate of n times 51.84 megabits per second.
- optical isomerism — stereoisomerism in which the isomers are identical in molecular weight and most chemical and physical properties but differ in their effect on the rotation of polarized light.
- organ-pipe cactus — a treelike or columnar cactus, Lemaireocereus marginatus, of Mexico, having a central, erect spine surrounded by spreading spines in clusters of five to eight, and funnel-shaped, brownish-purple flowers.
- organic chemistry — the branch of chemistry, originally limited to substances found only in living organisms, dealing with the compounds of carbon.
- osculating circle — circle of curvature.
- outside broadcast — An outside broadcast is a radio or television programme that is not recorded or filmed in a studio, but in another building or in the open air.
- over-appreciation — gratitude; thankful recognition: They showed their appreciation by giving him a gold watch.
- over-compensation — a pronounced striving to neutralize and conceal a strong but unacceptable character trait by substituting for it an opposite trait.
- over-conservative — disposed to preserve existing conditions, institutions, etc., or to restore traditional ones, and to limit change.
- overconcentration — the act of concentrating; the state of being concentrated.
- overhead camshaft — a camshaft in an automotive engine that is located in the cylinder head over the engine block rather than in the block. Abbreviation: OHC.
- oystershell scale — a scale insect, Lepidosaphes ulmi, having a scale shaped like the shell of an oyster, which infests various deciduous trees and shrubs.
- pacific northwest — the region of North America lying north of the Columbia River and west of the Rockies
- pacific tree frog — a common terrestrial frog, Hyla regilla, of western North America, having a dark stripe along each side of the head.
- palace revolution — a challenge to or overthrow of a sovereign or other leader by members of the ruling family or group.
- paleobiochemistry — the study of biochemical processes that occurred in fossil life forms.
- paleoconservative — a person advocating an older, traditional type of conservatism, especially in politics.
- parallel computer — parallel processor
- parathyroidectomy — the excision of a parathyroid gland.
- particle velocity — the velocity of a point in a medium that is undergoing wave motion.
- peacock butterfly — a European nymphalid butterfly, Inachis io, having reddish-brown wings each marked with a purple eyespot
- pentachlorophenol — a white, crystalline, water-insoluble powder, C 6 Cl 5 OH, used chiefly in fungicides, disinfectants, and wood preservatives.
- per capita income — the total income of an area or country divided by the number of people in that area or country
- per procurationem — by one acting as an agent; by proxy.
- permanent account — A permanent account is an account which carries its balance and is kept open from year to year.
- personal computer — a compact computer that uses a microprocessor and is designed for individual use, as by a person in an office or at home or school, for such applications as word processing, data management, financial analysis, or computer games. Abbreviation: PC.
- personal distance — personal space.
- personality clash — friction between two people who have different personalities or points of view
- peterloo massacre — an incident at St Peter's Fields, Manchester, in 1819 in which a radical meeting was broken up by a cavalry charge, resulting in about 500 injuries and 11 deaths
- petrarchan sonnet — a sonnet form popularized by Petrarch, consisting of an octave with the rhyme scheme abbaabba and of a sestet with one of several rhyme schemes, as cdecde or cdcdcd.
- petrol filler cap — a small cover that goes over the hole in a vehicle into which you put petrol
- phantom pregnancy — the occurrence of signs of pregnancy, such as enlarged abdomen and absence of menstruation, when no embryo is present, due to hormonal imbalance
- photoreactivation — a process that repairs DNA damaged by ultraviolet light using an enzyme that requires visible light.
- phototherapeutics — the branch of therapeutics that deals with the curative use of light rays.
- pietro da cortona — Pietro da [pye-traw dah] /ˈpyɛ trɔ dɑ/ (Show IPA), (Pietro Berrettini) 1596–1669, Italian painter and architect.
- platinic chloride — chloroplatinic acid.
- pocket calculator — an electronic calculator small enough to be carried on one's person.
- pocket dictionary — a small portable dictionary
- point of purchase — designating or in use at a retail outlet where an item can be purchased; point-of-sale: point-of-purchase displays to entice the buyer.
- point reyes lilac — a prostrate shrub, Ceanothus gloriosus, of southern California, having leathery, roundish leaves and purplish or deep-blue flowers.
- point-of-purchase — designating or in use at a retail outlet where an item can be purchased; point-of-sale: point-of-purchase displays to entice the buyer.
- polar continental — a type of cold, dry air mass originating at high latitudes over land areas
- polar coordinates — Usually, polar coordinates. one of two coordinates used to locate a point in a plane by the length of its radius vector and the angle this vector makes with the polar axis (polar angle)
- police department — A police department is an official organization which is responsible for making sure that people obey the law.
- political liberty — the right to express oneself freely and effectually regarding the conduct, makeup, and principles of the government under which one lives.
- political refugee — a person who has fled from a homeland because of political persecution.
- polyacrylonitrile — a polymer of acrylonitrile used in the manufacture of Orlon and other synthetic textiles.
- port orford cedar — a tall tree, Chamaecyparis lawsoniana, of coastal Oregon, having flattened, scalelike foliage and wood highly valued as timber.