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17-letter words containing o, l, d, i

  • paradoxical sleep — REM sleep.
  • parathyroid gland — any of several small oval glands usually lying near or embedded in the thyroid gland.
  • peridot of ceylon — a honey-colored tourmaline, used as a gem: not a true peridot.
  • period-revolution — a rather large interval of time that is meaningful in the life of a person, in history, etc., because of its particular characteristics: a period of illness; a period of great profitability for a company; a period of social unrest in Germany.
  • periodical cicada — seventeen-year locust.
  • personal distance — personal space.
  • phenylformic acid — benzoic acid.
  • phumiphon aduldet — (Phumiphon Aduldet; Bhumibol Adulyadej) born 1927, king of Thailand since 1946.
  • 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.
  • polyadenylic acid — a homopolymer of adenylic acid enzymatically added to messenger RNA in eukaryotic cells to inhibit the hydrolytic breakdown of messenger RNA.
  • post-and-rail tea — (in the 19th century) a coarse tea in which floating particles resembled a post-and-rail fence
  • post-depositional — removal from an office or position.
  • 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.
  • product liability — the responsibility of a manufacturer for injury or loss caused by its product.
  • 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.
  • 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-biological — pertaining to biology.
  • 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.
  • psychoeducational — designating or of psychological methods, as intelligence tests, used in evaluating learning ability
  • 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.
  • reading knowledge — the ability to read a language, but not speak it
  • recorded delivery — If you send a letter or parcel recorded delivery, you send it using a Post Office service which gives you an official record of the fact that it has been posted and delivered.
  • recreational drug — drug taken for pleasure
  • reduce to silence — If someone or something reduces you to silence, they make you feel so upset or confused that you cannot speak.
  • 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
  • reformed spelling — a revised orthography intended to simplify the spelling of English words, especially to eliminate unpronounced letters, as by substituting thru for through, tho for though, slo for slow, etc.
  • reproductive cell — gamete.
  • revealed religion — religion based chiefly on the revelations of God to humans, especially as described in Scripture.
  • 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
  • russian wolfhound — borzoi.
  • sable island pony — a variety of wild pony found on Sable Island, Nova Scotia
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