Stories We Like: A Guide to the Comma
radiation ra·di·a·tion (rā'dē-ā'shən)
The act or condition of diverging in all directions from a center.
The emission and propagation of energy in the form of rays or waves.
The energy radiated or transmitted in the form of rays, waves, or particles.
A stream of particles or electromagnetic waves that is emitted by the atoms and molecules of a radioactive substance as a result of nuclear decay.
The radial arrangement of anatomical or histological parts.
The spread of a group of organisms into new habitats.