Definition of radiation:

part of speech: noun

Act of radiating: the emission and diffusion of rays of light or heat.

part of speech: noun

The coming forth and spreading, as of rays, in all directions from a common center; as, the radiation of light or heat from a shining or heated body.

Word of the day


An animal in Australia, with a body like an otter and a snout like the bill of a duck, also called Duckbill. ...