18-letter words containing p, l, e, r, o
- conceptual realism — the doctrine that universals have real and independent existence.
- control experiment — an experiment designed to check or correct the results of another experiment by removing the variable or variables operating in that other experiment. The comparison obtained is an indication or measurement of the effect of the variables concerned
- controllable-pitch — (of a marine or aircraft propeller) having blades whose pitch can be changed during navigation or flight; variable-pitch.
- cooling-off period — A cooling-off period is an agreed period of time during which two sides with opposing views try to resolve a dispute before taking any serious action.
- cordless telephone — a portable battery-powered telephone with a short-range radio link to a fixed base unit
- corpuscular theory — the theory, originally proposed by Newton, and revived with the development of the quantum theory, that light consists of a stream of particles
- cranial osteopathy — osteopathy that focuses on the cranium and the spine
- crown-jewel option — an option given by a company subjected to an unwelcome takeover bid to a friendly firm, allowing this firm to buy one or more of its best businesses if the bid succeeds
- crystal microphone — a microphone that uses a piezoelectric crystal to convert sound energy into electrical energy
- cyclopean concrete — concrete containing stones larger than 6 inches (15 cm).
- decachlorobiphenyl — (organic compound) The fully chlorinated polychlorinated biphenyl containing ten chlorine atoms.
- decompartmentalize — to remove excessive compartmentalization from (an organization)
- departmental store — a department store.
- departure platform — a raised area at a railway station from which passengers can board trains prior to their departing
- depository library — a library designated by law to receive without charge all or a selection of the official publications of a government.
- developing country — a nonindustrialized poor country that is seeking to develop its resources by industrialization
- development period — a length of time during which a company grows
- diphosphoglycerate — an ester of phosphoric acid and glyceric acid that occurs in the blood and that promotes the release of hemoglobin-bound oxygen.
- diplomatic service — diplomatic corps
- disproportionately — not proportionate; out of proportion, as in size or number.
- dominican republic — a republic in the West Indies, occupying the E part of the island of Hispaniola. 19,129 sq. mi. (49,545 sq. km). Capital: Santo Domingo.
- domremy-la-pucelle — a village in Lorraine, NE France, SW of Nancy: birthplace of Joan of Arc.
- double-page spread — two pages treated as one in a publication, with images or text extending across the binding
- dry-powder inhaler — A dry-powder inhaler is a device that delivers medication to the lungs in the form of a dry powder.
- due process of law — the administration of justice in accordance with established rules and principles
- echoencephalograph — a device that employs reflected ultrasonic waves to examine the position of brain structures.
- eggshell porcelain — a type of very thin translucent porcelain originally made in China
- ejaculatio praecox — premature ejaculation during sexual intercourse
- electric potential — the work required to transfer a unit positive electric charge from an infinite distance to a given point against an electric field
- electroacupuncture — the insertion into the body of one or more needles through which an electric current is passed
- electrocardiograph — A machine used for electrocardiography.
- electron telescope — an astronomical telescope with an attachment for converting the infrared radiation emitted from the surface of planets into a visible image
- electron transport — the metabolic process in mitochondria or chloroplasts, in which electrons are transferred in stages from energy-rich compounds to molecular oxygen with liberation of energy
- electronic receipt — An electronic receipt is one created in a computerized cash register, or by an online retailer. It will usually show the date and time, how payment is made, and other details of the sale.
- electrophotography — Any of several methods of photocopying in which an image is created and then transferred between surfaces using static electricity.
- electrotherapeutic — Relating to electrotherapeutics.
- elizabeth petrovna — 1709-62; empress of Russia (1741-62): daughter of Peter I
- employment service — (in the United States) a government department established to collect and supply to the unemployed information about job vacancies and to employers information about availability of prospective workers
- equinoctial spring — either of the two highest spring tides that occur at the equinoxes
- erectile impotence — impotence caused by the inability of the penis to become sufficiently firm to penetrate the vagina
- expressionlessness — The state of being without an expression.
- false imprisonment — the unlawful restraint of a person from exercising the right to freedom of movement.
- farewell-to-spring — a slender, showy plant, Clarkia amoena, of the evening primrose family, native to western North America, having satiny, cup-shaped, lilac-crimson or reddish-pink flowers and roundish fruit.
- farmer-labor party — a political party in Minnesota, founded in 1920 and merged with the Democratic Party in 1944.
- fermat's last post — (humour) A post to a bug tracker, mailing list or forum in which the author claims to have found a simple fix or workaround for a bug, but never says what it is and never shows up again to explain it (even after others have been puzzling over the bug for years).
- flowers of sulphur — minute crystals of sulphur obtained by condensing sulphur vapour on a cold surface
- football supporter — a person who supports a particular football team
- forced development — the processing of underexposed photographic film to increase the image density
- forward compatible — forward compatibility
- four-color problem — the problem, solved in 1976, of proving the theorem that any geographic map can be colored using only four colors so that no connected countries with a common boundary are colored the same color.