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gentian
(Encyclopedia)gentian jĕnˈshən [key], common name for some members of the Gentianaceae, a family of widely distributed herbs, chiefly perennial and fall blooming. There are many types of gentians (genus Gentiana...heartburn
(Encyclopedia)heartburn, burning sensation beneath the breastbone, also called pyrosis. Heartburn does not indicate heart malfunction but results from nervous tension or overindulgence in food or drink. The sensati...ultrasound
(Encyclopedia)ultrasound or sonography, in medicine, technique that uses sound waves to study and treat hard-to-reach body areas. In scanning with ultrasound, high-frequency sound waves are transmitted to the area ...Black, Sir James Whyte
(Encyclopedia)Black, Sir James Whyte, 1924–2010, Scottish pharmacologist, M.B., Ch.B. Univ. of St. Andrews, 1946. A drug researcher, he held a series of posts with universities and drug companies before serving a...tung oil
(Encyclopedia)tung oil, oil obtained from the seeds of a tropical tree, the tung tree (Aleurites fordii) of the spurge family, and from seeds of some related species, all from Indomalesia or W Pacifica. It is known...Beeson, Jack
(Encyclopedia)Beeson, Jack, 1921–2010, American composer, b. Muncie, Ind. Beeson studied at the Eastman School of Music and privately in New York with Béla Bartók. Teaching at Columbia from 1945, he was named M...trichinosis
(Encyclopedia)trichinosis trĭkˌĭnīˈəsĭs [key], parasitic disease caused by the roundworm Trichinella spiralis. It follows the eating of raw or inadequately cooked meat, especially pork. The larvae are releas...Roche limit
(Encyclopedia)Roche limit, the closest distance that a celestial body held together only by its own gravity can come to a planet without being pulled apart by the planet's tidal (gravitational) force. This distance...sextant
(Encyclopedia) CE5 Sextant sextant, instrument for measuring the altitude of the sun or another celestial body; such measurements can then be used to determine the observer's geographical position or for other n...gynecology
(Encyclopedia)gynecology gīnˌəkŏlˈəjē [key], branch of medicine specializing in the disorders of the female reproductive system. Modern gynecology deals with menstrual disorders, menopause, infectious diseas...Browse by Subject
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