A point source from which radiation is emitted.

(astronomy) The apparent origin, in the night sky, of a meteor shower.

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

Radiating light and/or heat.

Emitted as radiation.

Beaming with vivacity and happiness.

Strikingly beautiful.

Emitting or proceeding as if from a center.

(heraldry) Giving off rays; said of a bearing.

(botany) Having a ray-like appearance, like the large marginal flowers of certain umbelliferous plants; said also of the cluster which has such marginal flowers.