Radiating light and/or heat.
the radiant sun
Emitted as radiation.
Beaming with vivacity and happiness.
a radiant face
A point source from which radiation is emitted.
The apparent origin, in the night sky, of a meteor shower.
A straight line proceeding from a given point, or fixed pole, about which it is conceived to revolve.
From Middle English radyant, from Latin radiāns, radiantis, present participle of radiāre (“to emit rays or beams”).
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