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rickettsia
(Encyclopedia)rickettsia rĭkĕtˈsēə [key], any of an order (Rickettsiales) of very small microorganisms, many disease-causing, that live in vertebrates and are transmitted by bloodsucking parasitic arthropods s...Ayllón, Lucas Vásquez de
(Encyclopedia)Ayllón, Lucas Vásquez de lo͞oˈkäs väsˈkāth dā īlyōnˈ [key], c.1475–1526, Spanish explorer. He emigrated in 1502 to Santo Domingo, where he became a public official. In 1521, Francisco Go...aspirin
(Encyclopedia)aspirin, acetyl derivative of salicylic acid (see salicylate) that is used to lower fever, relieve pain, reduce inflammation, and thin the blood. Common conditions treated with aspirin include headach...Iberville, Pierre le Moyne, sieur d'
(Encyclopedia)Iberville, Pierre le Moyne, sieur d' pyĕr lə mwän syör dēbĕrvēlˈ [key], 1661–1706, French Canadian naval officer, founder of the French territory of Louisiana, b. Ville Marie (in present Mon...Galveston
(Encyclopedia)Galveston gălˈvəstən [key], city (2020 pop. 50,546), seat of Galveston co., on Galveston ...ocher
(Encyclopedia)ocher ōˈkər [key], mixture of varying proportions of iron oxide and clay, used as a pigment. It occurs naturally as yellow ocher (yellow or yellow-brown in color), the iron oxide being limonite, or...tularemia
(Encyclopedia)tularemia to͞olərēˈmēə [key] or rabbit fever, acute, infectious disease caused by Francisella tularensis (Pasteurella tularensis). The greatest incidence is among people who handle infected wild...Semmelweis, Ignaz Philipp
(Encyclopedia)Semmelweis, Ignaz Philipp ĭgˈnäts fēˈlĭp zĕmˈəlvīs [key], 1818–65, Hungarian physician. He was a pioneer in employing asepsis. While on the staff of the general hospital in Vienna, he reco...chikungunya
(Encyclopedia)chikungunya chĭkən-go͞onˈyä [key], viral disease transmitted by the bite of an infected female Aedes mosquito. Symptoms appear after an incubation period of four to eight days and include sudden ...bonecrusher disease
(Encyclopedia)bonecrusher disease: see dengue fever. ...Browse by Subject
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