Bee English Dictionary

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heliograph
  • n  an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on
  • v  signal by means of a mirror and the using the sun's rays
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heliometer
  • n  an instrument used to measure the angular separation of two stars that are too far apart to be included in the field of view of an ordinary telescope
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heliopause
  • n  the boundary marking the edge of the sun's influence; the boundary (roughly 100 AU from the sun) between the interplanetary medium and the interstellar medium; where the solar wind from the sun and the radiation from other stars meet
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heliophila
  • n  any of various South African herbs and subshrubs cultivated for long showy racemes of bright blue flowers with white eyes
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heliopsis
  • n  any North American shrubby perennial herb of the genus Heliopsis having large yellow daisylike flowers
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helios
  • n  (Greek mythology) ancient god of the sun; drove his chariot across the sky each day; identified with Roman Sol
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heliosphere
  • n  the region inside the heliopause containing the sun and solar system
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