Cheerful and good-humoured; jolly, merry.
Beaming with vivacity and happiness.
Emitted as radiation.
Emitting or proceeding as if from a center.
Radiating light and/or heat.
Strikingly beautiful.
Giving off rays; said of a bearing.
Having a ray-like appearance, like the large marginal flowers of certain umbelliferous plants; said also of the cluster which has such marginal flowers.
The apparent origin, in the night sky, of a meteor shower.
A point source from which radiation is emitted.
A straight line proceeding from a given point, or fixed pole, about which it is conceived to revolve.