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radiant

/ˈɹeɪdi.ənt/
noun

  1. A point source from which radiation is emitted.

  2. The apparent origin, in the night sky, of a meteor shower.

  3. A straight line proceeding from a given point, or fixed pole, about which it is conceived to revolve.

adjective

  1. Radiating light and/or heat.

    "the radiant sun"

  2. Emitted as radiation.

  3. Beaming with vivacity and happiness.

    "a radiant face"

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