Radiant
/ˈɹeɪdi.ənt/
noun
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.
adjective
Radiating light and/or heat.
“the radiant sun”
Emitted as radiation.
Beaming with vivacity and happiness.
“a radiant face”