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stethoscope
(Encyclopedia)stethoscope stĕthˈəskōpˌ [key] [Gr.,=chest viewer], instrument that enables the physican to hear the sounds made by the heart, the lungs, and various other organs. The earliest stethoscope, devis...Shaffer, Sir Peter
(Encyclopedia)Shaffer, Sir Peter shăfˈər [key], 1926–2016, English playwright, b. Liverpool, grad. Cambridge, 1950. Before turning to the stage he wrote for radio and television and was the author of several m...salivary glands
(Encyclopedia)salivary glands sălˈəvârˌē [key], in humans, three pairs of glands that secrete the alkaline digestive fluid, saliva, into the mouth. Most animals have salivary glands that resemble those in hum...honeyeater
(Encyclopedia)honeyeater or honeysucker, common name for arboreal birds comprising some 160 species of the family Meliphagidae, and found in Australia, New Zealand, and the SW Pacific. There is a single South Ameri...Hammond, John Henry
(Encyclopedia)Hammond, John Henry, 1910–87, American record producer; blues, jazz, and rock promoter; and music critic, b. New York City. A member of the wealthy Vanderbilt family, he entered the music business i...ectoderm
(Encyclopedia)ectoderm, layer of cells that covers the surface of an animal embryo after the process of gastrulation has occurred. This outer layer, together with the endoderm, or inner layer, is present in all ear...ultrasonics
(Encyclopedia)ultrasonics, study and application of the energy of sound waves vibrating at frequencies greater than 20,000 cycles per second, i.e., beyond the range of human hearing. The application of sound energy...loudspeaker
(Encyclopedia)CE5 Electrodynamic loudspeaker loudspeaker or speaker, device used to convert electrical energy into sound. It consists essentially of a thin flexible sheet called a diaphragm that is made to vibr...theory
(Encyclopedia)theory, in music, discipline involving the construction of cognitive systems to be used as a tool for comprehending musical compositions. The discipline is subdivided into what can be called speculati...sorghum
(Encyclopedia)sorghum, tall, coarse annual (Sorghum bicolor) of the family Poaceae (grass family), somewhat similar in appearance to corn (but having the grain in a panicle rather than an ear) and used for much the...Browse by Subject
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