radiation

radio (Latin)

(active) I cause to radiate, irradiate.. (passive) I radiate, emit beams.

radiatio (Latin)

Glittering, shining, radiation.

radiation (English)

Radioactive energy.. The process of radiating waves or particles.. The shooting forth of anything from a point or surface, like diverging rays of light.. The transfer of energy via radiation (as opposed to convection or conduction).