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skate
(Encyclopedia)skate, fish: see ray.mermaid's purse
(Encyclopedia)mermaid's purse: see ray.torpedo , in zoology
(Encyclopedia)torpedo, fish: see ray.fluoroscope
(Encyclopedia)fluoroscope flo͝orˈəskōp [key], instrument consisting of an X-ray machine (see X ray) and a fluorescent screen that may be used by physicians to view the internal organs of the body. During medica...Gamma-Ray Observatory
(Encyclopedia)Gamma-Ray Observatory: see gamma-ray astronomy. ...Compton Gamma-Ray Observatory
(Encyclopedia)Compton Gamma-Ray Observatory: see gamma-ray astronomy. ...refraction
(Encyclopedia)refraction, in physics, deflection of a wave on passing obliquely from one transparent medium into a second medium in which its speed is different, as the passage of a light ray from air into glass. O...Ray, Man
(Encyclopedia)Ray, Man, 1890–1976, American photographer, painter, and sculptor, b. Philadelphia. Along with Marcel Duchamp, Ray was a founder of the Dada movement in New York and Paris. He is celebrated for his ...Willughby, Francis
(Encyclopedia)Willughby, Francis wĭlˈəbē [key], 1635–72, English naturalist. He is known especially for his early systematic work on birds and fishes, in which he made some of the most important contributions...devilfish
(Encyclopedia)devilfish, name applied to the manta ray and to an American species of octopus. ...Browse by Subject
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