17-letter words containing l, o, a, r, d
- overhead lighting — lighting which throws light downwards by being situated on the ceiling or having a downward shade, etc
- paradoxical sleep — REM sleep.
- parathyroid gland — any of several small oval glands usually lying near or embedded in the thyroid gland.
- periodical cicada — seventeen-year locust.
- personal distance — personal space.
- phenylformic acid — benzoic acid.
- platinic chloride — chloroplatinic acid.
- 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.
- police procedural — a mystery novel, film, or television drama that deals realistically with police work.
- post-and-rail tea — (in the 19th century) a coarse tea in which floating particles resembled a post-and-rail fence
- postural drainage — a therapy for clearing congested lungs by placing the patient in a position for drainage by gravity, often accompanied by percussion with hollowed hands.
- potential divider — a resistor or series of resistors connected to a voltage source and used to provide voltages that are fractions of that of the source.
- powder metallurgy — the art or science of manufacturing useful articles by compacting metal and other powders in a die, followed by sintering.
- product liability — the responsibility of a manufacturer for injury or loss caused by its product.
- product placement — Product placement is a form of advertising in which a company has its product placed where it can be clearly seen during a film or television programme.
- production values — the quality of a media production (such as a film) in regards to elements such as colours, quality, style, etc
- programming fluid — (jargon) (Or "wirewater") Coffee, unleaded coffee (decaffeinated), Cola, or any caffeinacious stimulant. Many hackers consider these essential for those all-night hacking runs.
- prolonged-release — A prolonged-release drug delivers a dose of a medication over an extended period of time.
- prothoracic gland — either of a pair of endocrine glands in the anterior thorax of some insects, functioning to promote the series of molts from hatching to adulthood.
- pseudo-historical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- pseudo-moralistic — a person who teaches or inculcates morality.
- pull your head in — be quiet!
- pyroligneous acid — a yellowish, acidic, water-soluble liquid, containing about 10 percent acetic acid, obtained by the destructive distillation of wood: used for smoking meats.
- pyrosulfuric acid — a strong, crystalline acid, H2S2O7, prepared commercially as a heavy, oily, fuming liquid: used in making explosives and dyes, as a sulfating agent, etc.
- quadratic formula — the formula for determining theroots of a quadratic equation from its coefficients: .
- quattuordecillion — a cardinal number represented in the U.S. by 1 followed by 45 zeros, and in Great Britain by 1 followed by 84 zeros.
- radial keratotomy — a surgical technique for correcting nearsightedness by making a series of spokelike incisions in the cornea to change its shape and focusing properties.
- radio alarm clock — an alarm clock which consists of a radio that can be set to play at a particular time
- radio in the loop — Wireless Local Loop
- radioluminescence — luminescence induced by nuclear radiation.
- rail detector car — a car equipped with special instruments and used to locate defects in rails.
- railroad crossing — place for vehicles to cross train tracks
- rat-tailed maggot — the aquatic larva of any of several syrphid flies of the genus Eristalis, that breathes through a long, thin tube at the posterior end of its body.
- rattle one's dags — to hurry up
- reading knowledge — the ability to read a language, but not speak it
- recreational drug — drug taken for pleasure
- reduction formula — a formula, such as sin (90° ± A) = cos A, expressing the values of a trigonometric function of any angle greater than 90° in terms of a function of an acute angle
- revealed religion — religion based chiefly on the revelations of God to humans, especially as described in Scripture.
- revealed theology — theology based on the doctrine that all religious truth is derived exclusively from the revelations of God to humans.
- rhode island bent — a European pasture grass, Agrostis tenuis, naturalized in North America, having red flower clusters.
- rio grande do sul — a state in S Brazil. 107,923 sq. mi. (279,520 sq. km). Capital: Pôrto Alegre.
- road-fund licence — a licence showing that the tax payable in respect of a motor vehicle has been paid
- rough-legged hawk — a large hawk, Buteo lagopus, of the Northern Hemisphere, that feeds chiefly on small rodents.
- rural development — social or economic activities or initiatives designed to improve the standard of living in areas far away from large towns or cities
- russell's paradox — a paradox of set theory in which an object is defined in terms of a class of objects that contains the object being defined, resulting in a logical contradiction.
- russian wolfhound — borzoi.
- sacrificial anode — Chemistry. an anode that is attached to a metal object subject to electrolysis and is decomposed instead of the object.
- san pedro channel — a strait between the mainland of SW California and Santa Catalina Island. About 20 miles (32 km) wide.
- sandro botticelli — Sandro [san-droh,, sahn-;; Italian sahn-draw] /ˈsæn droʊ,, ˈsɑn-;; Italian ˈsɑn drɔ/ (Show IPA), (Alessandro di Mariano dei Filipepi) 1444?–1510, Italian painter.