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16-letter words containing p, a, y

  • psychobiological — the use of biological methods to study normal and abnormal emotional and cognitive processes, as the anatomical basis of memory or neurochemical abnormalities in schizophrenia.
  • psychogeriatrics — the psychology of old age.
  • ptolemaic system — a system elaborated by Ptolemy and subsequently modified by others, according to which the earth was the fixed center of the universe, with the heavenly bodies moving about it.
  • publicity agency — an advertising agency; a firm that gets publicity for people or products
  • pulmonary artery — an artery conveying venous blood from the right ventricle of the heart to the lungs.
  • pygmy chimpanzee — a small chimpanzee, Pan paniscus, primarily of swamp forests in the Democratic Republic of the Congo: a threatened species.
  • pyramidal orchid — a chalk-loving orchid, Anacamptis pyramidalis, bearing a dense cone-shaped spike of purplish-pink flowers with a long curved spur
  • pyroracemic acid — pyruvic acid.
  • pyrovanadic acid — an oxyacid of vanadium, known chiefly in the form of its vanadate salts; Formula: H4V2O7
  • pyruvic aldehyde — a yellow, liquid compound, C 3 H 4 O 2 , containing both an aldehyde and a ketone group, usually obtained in a polymeric form: used chiefly in organic synthesis.
  • quasi-compulsory — required; mandatory; obligatory: compulsory education.
  • query by example — (database, language)   (QBE) A user-friendly query language developed by Moshé Zloof of IBM in 1975.
  • radial paralysis — paralysis of a forelimb as a result of loss of function of the radial nerve, usually following traumatic injury
  • radiographically — the production of radiographs.
  • ramsden eyepiece — an eyepiece consisting of two plano-convex crown-glass lenses of equal focal length, placed with the convex sides facing each other and with a separation between the lenses of about two-thirds of the focal length of each.
  • raspberry sawfly — a black sawfly, Monophadnoides geniculatus, the larvae of which feed on the leaves of the raspberry and blackberry.
  • refinery upgrade — A refinery upgrade is the process of introducing the newest technology in some parts of the refinery.
  • relatively prime — (mathematics)   Having no common divisors (greater than 1). Two numbers are said to be relativey prime if there is no number greater than unity that divides both of them evenly. For example, 10 and 33 are relativly prime. 15 and 33 are not relatively prime, since 3 is a divisor of both.
  • representatively — a person or thing that represents another or others.
  • republican party — one of the two major political parties in the U.S.: originated 1854–56.
  • reserve capacity — the capacity of a battery, measured in minutes, to keep a vehicle operating if the charging system fails.
  • restriction play — a limited number of opening moves that are predetermined by their chance selection from an accepted list.
  • rhinopharyngitis — inflammation of the mucous membranes of the nose and pharynx.
  • rhynchocephalian — belonging or pertaining to the Rhynchocephalia, an order of lizardlike reptiles that are extinct except for the tuatara.
  • roentgenotherapy — treatment of disease by means of x-rays.
  • sapodilla family — the plant family Sapotaceae, characterized by chiefly tropical trees and shrubs having milky juice, simple leaves, small flowers, and fruit in the form of a berry, and including the buckthorn (genus Bumelia), sapodilla, star apple, and trees that are the source of gutta-percha and balata.
  • seating capacity — the number of people a place can seat
  • secondary phloem — phloem derived from the cambium during secondary growth.
  • self-complacency — pleased with oneself; self-satisfied; smug.
  • self-deprecatory — belittling or undervaluing oneself; excessively modest.
  • self-exculpatory — intended to excuse oneself from blame or guilt
  • self-explanatory — explaining itself; needing no explanation; obvious.
  • sharpe's grysbok — either of two small, usually solitary antelopes of southern Africa, Raphicerus melanotis, or R. sharpei (Sharpe's grysbok) having a light to dark reddish-brown coat speckled with white.
  • shipping company — business that sends goods overseas
  • shorthand typing — shorthand and typing
  • shorthand typist — A shorthand typist is a person who types and writes shorthand, usually in an office.
  • showy crab apple — a large Japanese bush or tree, Malus floribunda, of the rose family, having red fruit and rose-colored flowers that fade to white.
  • single occupancy — a type of travel accommodation, as at a hotel, for one person in a room.
  • sleep-wake cycle — Physiology. the species-specific biological pattern of alternating sleep and wakefulness, in humans roughly 8 hours of nocturnal sleep and 16 hours of daytime activity.
  • soapberry family — the plant family Sapindaceae, characterized by chiefly tropical trees, shrubs, or herbaceous vines having compound leaves, clustered flowers, and berrylike, fleshy, or capsular fruit, and including the balloon vine, golden rain tree, litchi, and soapberry.
  • social pathology — a social factor, as poverty, old age, or crime, that tends to increase social disorganization and inhibit personal adjustment.
  • soft pornography — soft-core pornography.
  • sony playstation — Playstation
  • special delivery — (in the U.S. Postal Service) delivery of mail outside the regularly scheduled hours, by a special messenger, upon the payment of an extra fee.
  • specific gravity — the ratio of the density of any substance to the density of some other substance taken as standard, water being the standard for liquids and solids, and hydrogen or air being the standard for gases.
  • speech pathology — the scientific study and treatment of defects, disorders, and malfunctions of speech and voice, as stuttering, lisping, or lalling, and of language disturbances, as aphasia or delayed language acquisition.
  • sphygmomanometer — an instrument, often attached to an inflatable air-bladder cuff and used with a stethoscope, for measuring blood pressure in an artery.
  • sphygmomanometry — an instrument, often attached to an inflatable air-bladder cuff and used with a stethoscope, for measuring blood pressure in an artery.
  • spiny-rayed fish — any of various fishes, as basses and perches, that have sharp, often pointed and usually rigid fin spines.
  • spraying machine — a device for spraying large volumes of liquid, such as insecticide onto crops
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