15-letter words containing p, r, e, a, d, o
- absorption edge — a discontinuity in the graph of the absorption coefficient of a substance plotted against the wavelength of x-rays being absorbed, representing the minimum energy necessary to free electrons from particular shells of the atoms of the substance.
- accordion pleat — one of a series of narrow, evenly spaced parallel pleats with alternating raised and recessed folds set into cloth or other material, usually by a commercial pleating machine.
- adjective group — An adjective group or adjectival group is a group of words based on an adjective, such as 'very nice' or 'interested in football'. An adjective group can also consist simply of an adjective.
- adoption papers — documentation relating to the adoption of a particular child
- adrenoreceptors — Plural form of adrenoreceptor.
- alexandroupolis — a port in NE Greece, in W Thrace. Pop: 52 720 (2001 est)
- algaroth powder — antimony oxychloride.
- all mockered up — dressed up
- allotetraploidy — the condition of being an allotetraploid
- andrographolide — (organic compound) A bitter labdane diterpenoid that is the main bioactive component of the medicinal plant Andrographis paniculata, effective against certain cancers.
- aneroid capsule — a box or chamber of thin metal, partially exhausted of air, used in the aneroid barometer and pressure altimeter.
- anti-productive — having the power of producing; generative; creative: a productive effort.
- aphrodite terra — a large plateau region that stretches approximately halfway around the middle latitude of Venus.
- apollo asteroid — one of a number of asteroids whose orbits cross that of the earth.
- apostles' creed — a concise statement of Christian beliefs dating from about 500 ad, traditionally ascribed to the Apostles
- apple-pie order — perfect order or condition
- approved school — In Britain in the past, an approved school was a boarding school where young people could be sent to stay if they had been found guilty of a crime.
- arc de triomphe — the triumphal arch in Paris begun by Napoleon I to commemorate his victories of 1805–6 and completed in 1836
- armaments depot — a store for armaments
- autotetraploidy — the generation of the tetraploid state, created by the fusing of two nuclei from the same species
- bad housekeeper — a person who is not an efficient and thrifty domestic manager
- bandstop filter — A bandstop filter is a filter designed to eliminate all frequencies within a band of frequencies.
- barium peroxide — a gray-white powder, BaO2, used as a bleach and in making hydrogen peroxide
- ben day process — a method of adding texture, shading, or detail to line drawings by overlaying a transparent sheet of dots or any other pattern during platemaking
- bird of passage — If you refer to someone as a bird of passage, you mean that they are staying in a place for a short time before going to another place.
- bladder campion — a European caryophyllaceous plant, Silene vulgaris, having white flowers with an inflated calyx
- blasting powder — a form of gunpowder made with sodium nitrate instead of saltpeter, used chiefly for blasting rock, ore, etc.
- board of parole — an agency that determines which prisoners are to be released on parole
- break-in period — a period during which certain restrictions or moderation in operating should be followed, as the avoidance of high speed, rapid acceleration, or severe braking for a new automobile.
- cache la poudre — a river in N Colorado, flowing N and E to the South Platte River. 126 miles (203 km) long.
- camphorated oil — a liniment consisting of camphor and peanut oil, used as a counterirritant
- casters-up mode — [IBM, probably from slang belly up] Yet another synonym for "broken" or "down". Usually connotes a major failure. A system (hardware or software) which is "down" may be already being restarted before the failure is noticed, whereas one which is "casters up" is usually a good excuse to take the rest of the day off (as long as you're not responsible for fixing it).
- cephalochordate — any chordate animal of the subphylum Cephalochordata, having a fishlike body and no vertebral column; lancelet
- chandler period — the period of the oscillation (Chandler wobble) of the earth's axis, varying between 416 and 433 days.
- chorale prelude — a composition for organ using a chorale as a cantus firmus or as the basis for variations
- chromium-plated — having been plated with chromium
- cinematographed — a motion-picture projector.
- cineradiography — the filming of motion pictures through a fluoroscope or x-ray machine.
- clouded leopard — a feline, Neofelis nebulosa, of SE Asia and Indonesia with a yellowish-brown coat marked with darker spots and blotches
- computer dating — the use of computers by dating agencies to match their clients
- connected graph — (mathematics) A graph such that there is a path between any pair of nodes (via zero or more other nodes). Thus if we start from any node and visit all nodes connected to it by a single edge, then all nodes connected to any of them, and so on, then we will eventually have visited every node in the connected graph.
- corn-leaf aphid — a green aphid, Rhopalosiphum maidis, widely distributed in the U.S.: a pest of corn and other grasses.
- corps de ballet — In ballet, the corps de ballet is the group of dancers who dance together, in contrast to the main dancers, who dance by themselves.
- coup de theatre — a dramatic turn of events, esp in a play
- cowper's glands — two small yellowish glands near the prostate that secrete a mucous substance into the urethra during sexual stimulation in males
- critical period — a period in a lifetime during which a specific stage of development usually occurs. If it fails to do so, it cannot readily occur afterwards
- cyanide process — a process for recovering gold and silver from ores by treatment with a weak solution of sodium cyanide
- d. c. power lab — The former site of SAIL. This name was very funny because the obvious connection to electrical engineering was nonexistent - the lab was named after a Donald C. Power. Compare Marginal Hacks.
- dadchelor party — a party primarily attended by men and held to honour and present gifts to a prospective father
- daguerreotyping — Present participle of daguerreotype.
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