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15-letter words containing d, r, y

  • phenylhydrazine — a yellow, poisonous liquid or low-melting solid, C 6 H 8 N 2 , used in chemical analysis and organic synthesis.
  • pied flycatcher — a small black and white migratory bird of Europe and western Asia, Ficedula hypoleuca
  • pituitary gland — a small, somewhat cherry-shaped double structure attached by a stalk to the base of the brain and constituting the master endocrine gland affecting all hormonal functions in the body, consisting of an anterior region ((anterior pituitary) or (adenohypophysis)) that develops embryonically from the roof of the mouth and that secretes growth hormone, LH, FSH, ACTH, TSH, and MSH, a posterior region ((posterior pituitary) or (neurohypophysis)) that develops from the back of the forebrain and that secretes the hormones vasopressin and oxytocin, and an intermediate part (pars intermedia) derived from the anterior region but joined to the posterior region, that secretes the hormone MSH in lower vertebrates.
  • polychlorinated — having multiple chlorine atoms
  • polyunsaturated — of or noting a class of animal or vegetable fats, especially plant oils, whose molecules consist of carbon chains with many double bonds unsaturated by hydrogen atoms and that are associated with a low cholesterol content of the blood.
  • pre-delinquency — failure in or neglect of duty or obligation; dereliction; default: delinquency in payment of dues.
  • presidents' day — the third Monday in February, a legal holiday in the U.S., commemorating the birthdays of George Washington and Abraham Lincoln.
  • primary product — a product consisting of a natural raw material; an unmanufactured product
  • primary winding — an induction coil that is the part of an electric circuit in which a changing current induces a current in a neighbouring circuit
  • private pay bed — (in Britain) a bed in a National Health Service hospital, reserved for private patients who pay a consultant acting privately for treatment and who are charged by the health service for use of hospital facilities
  • privately owned — owned by a private individual or organization, rather than by the state or a public body
  • profoundly deaf — unable to hear any sound below 95 decibels in one's better ear
  • property ladder — progress from cheaper to more expensive housing
  • propionaldehyde — a colorless, water-soluble liquid, C 3 H 6 O, having a pungent odor: used chiefly in the manufacture of plastics.
  • propyl aldehyde — a colorless, water-soluble liquid, C 3 H 6 O, having a pungent odor: used chiefly in the manufacture of plastics.
  • propylhexedrine — a colorless, adrenergic, water-soluble liquid, C 1 0 H 2 N, used by inhalation as a nasal decongestant.
  • pseudo-military — of, for, or pertaining to the army or armed forces, often as distinguished from the navy: from civilian to military life.
  • pseudoparalysis — the inability to move a part of the body owing to factors, as pain, other than those causing actual paralysis.
  • pseudopregnancy — Pathology, Veterinary Pathology. false pregnancy.
  • psychedelicware — /si:"k*-del"-ik-weir/ [UK] Synonym display hack. See also smoking clover.
  • pubic directory — [NYU] (also "pube directory" /pyoob' d*-rek't*-ree/) The "pub" (public) directory on a machine that allows FTP access. So called because it is the default location for SEX (software exchange).
  • pyramid selling — Pyramid selling is a method of selling in which one person buys a supply of a particular product direct from the manufacturer and then sells it to a number of other people at an increased price. These people sell it on to others in a similar way, but eventually the final buyers are only able to sell the product for less than they paid for it.
  • pyramidal tract — any of four tracts of descending motor fibers that extend in pairs down each side of the spinal column and function in voluntary movement.
  • pyrimidine base — any of a number of similar compounds having a basic structure that is derived from pyrimidine, including cytosine, thymine, and uracil, which are constituents of nucleic acids
  • pyrogallic acid — pyrogallol
  • pyrogallic-acid — a white, crystalline, water-soluble, poisonous, solid, phenolic compound, C 6 H 3 (OH) 3 , obtained by heating gallic acid and water: used chiefly as a developer in photography, as a mordant for wool, in dyeing, and in medicine in the treatment of certain skin conditions.
  • pyrometric bead — (in a kiln) a ball of material that indicates by changing color that a certain temperature has been reached.
  • quadruple bucky — Obsolete. 1. On an MIT space-cadet keyboard, use of all four of the shifting keys (control, meta, hyper, and super) while typing a character key. 2. On a Stanford or MIT keyboard in raw mode, use of four shift keys while typing a fifth character, where the four shift keys are the control and meta keys on *both* sides of the keyboard. This was very difficult to do! One accepted technique was to press the left-control and left-meta keys with your left hand, the right-control and right-meta keys with your right hand, and the fifth key with your nose. Quadruple-bucky combinations were very seldom used in practice, because when one invented a new command one usually assigned it to some character that was easier to type. If you want to imply that a program has ridiculously many commands or features, you can say something like: "Oh, the command that makes it spin the tapes while whistling Beethoven's Fifth Symphony is quadruple-bucky-cokebottle." See double bucky, bucky bits, cokebottle.
  • quick-and-dirty — Informal. slipshod.
  • qwerty keyboard — a keyboard having the arrangement of alphabetical and numerical keys found on the traditional typewriter
  • radar astronomy — the branch of astronomy that uses radar to map the surfaces of planetary bodies, as the moon and Venus, and to determine periods of rotation.
  • radial symmetry — a basic body plan in which the organism can be divided into similar halves by passing a plane at any angle along a central axis, characteristic of sessile and bottom-dwelling animals, as the sea anemone and starfish.
  • radial velocity — the component of the motion of a star away from or toward the earth along its line of sight, expressed in miles or kilometers per second and determined by the shift in the wavelength of light emitted by the star.
  • radio astronomy — the branch of astronomy that utilizes extraterrestrial radiation in radio wavelengths rather than visible light for the study of the universe.
  • radio frequency — the frequency of the transmitting waves of a given radio message or broadcast.
  • radio sono-buoy — a buoy equipped to detect underwater noises and transmit them by radio
  • radioautography — autoradiography.
  • radiochemically — by radiochemical means or methods; from a radiochemical perspective
  • radiogoniometry — the science of detecting the direction of radio waves
  • radioimmunology — the study of biological substances or processes with the aid of antigens or antibodies labeled with a radioactive isotope.
  • radiometrically — using a radiometric method, in terms of radiometry
  • radiotechnology — the technical application of any form of radiation to industry.
  • radiotelegraphy — the constructing or operating of radiotelegraphs.
  • ranfurly shield — (in New Zealand) the premier rugby trophy, competed for annually by provincial teams
  • ray-finned fish — any of various bony fishes of the subclass Actinopterygii, having strong slender rays, excluding the coelacanth and lungfish.
  • rayside-balfour — a town in S Ontario, in S Canada.
  • ready-furnished — (of a room, house, office, etc) fitted with furniture before being rented or sold
  • redial facility — a means of dialling a number again by pressing a button
  • reduplicatively — in a reduplicative manner
  • remembrance day — (in Canada) November 11, observed as a legal holiday in memory of those who died in World Wars I and II, similar to Veterans Day in the U.S.
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