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theremin

(Encyclopedia) thereminthereminthĕrˈəmən [key], one of the earliest electronic musical instruments, invented (1920) in the Soviet Union and named for its creator, Leon Theremin. A forerunner of the…

Rodriguez, Alex

(Encyclopedia) Rodriguez, Alex (Alexander Emmanuel Rodriguez)Rodriguez, Alexrōdrēˈgəs [key], 1975–, American baseball player, b. New York City. Drafted (1993) out of high school by the Seattle…

lancelet

(Encyclopedia) lancelet, name for small, fishlike lower chordate (see Chordata), also called amphioxus; it shows many affinities with the vertebrates. There are about 30 lancelet species, most…

witch hazel

(Encyclopedia) CE5 Witch hazel, Hamamelis virginiana witch hazel, common name for some members of the Hamamelidaceae, a family of trees and shrubs found mostly in Asia. The family includes the…

laser

(Encyclopedia) CE5 Ordinary light sources produce incoherent light, while a laser produces a beam of coherent light. laser [acronym for light amplification by stimulated emission of radiation],…

Illinois, state, United States

(Encyclopedia) CE5 Illinois, midwestern state in the N central United States. It is bordered by Lake Michigan and Indiana (E); Kentucky, across the Ohio River (SE); Missouri and Iowa, across the…

lightning

(Encyclopedia) lightning, electrical discharge accompanied by thunder, commonly occurring during a thunderstorm. The discharge may take place between one part of a cloud and another part (intracloud…

Clostridium

(Encyclopedia) Clostridium, genus of gram-positive bacteria (see Gram's stain), several species of which cause significant, potentially deadly diseases in humans as a result of the toxins that each…

wire

(Encyclopedia) wire, metal filament, strand, or solid rod usually having a round cross section. Metals and alloys used for wiremaking are chosen for high tensile strength and ductility or for their…