positive ray.
(physics) a stream of positive ions produced in a discharge tube by allowing them to pass through holes in the cathode


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    canal water

  • Canal-zone

    a zone in central Panama, crossing the Isthmus of Panama on both sides of the Panama Canal: governed by the U.S. from 1903 until 1979, when most of the zone was returned to Panama, for its eventual control of the entire zone by 2000; about 10 miles (16 km) wide; excludes the cities of Panama […]

  • Canal

    an artificial waterway for navigation, irrigation, etc. a long narrow arm of the sea penetrating far inland. a tubular passage or cavity for food, air, etc., especially in an animal or plant; a duct. channel; watercourse. Astronomy. one of the long, narrow, dark lines on the surface of the planet Mars, as seen telescopically from […]

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    a small canal or tubular passage, as in bone. noun (pl) -li (-ˌlaɪ) a small channel, furrow, or groove, as in some bones and parts of plants

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