radiation

noun6

1. •
   a dangerous kind of energy that some materials give off and that can make people very sick

   • It's Christmas at ground zero / And if the radiation level's OK / I'll go out with you / To see all the new / Mutations on New Year's Day — 1986
2. •
   Ellipsis of electromagnetic radiation.
3. •
   The shooting forth of anything from a point or surface, like diverging rays of light.

   • The radiation of love from the crowd was addictive to the young singer-songwriters.
4. •
   The process of radiating waves or particles.
5. •
   The transfer of energy via radiation.
6. •
   A rapid diversification of an ancestral species into many new forms.

   • The second [canid group] is the radiation of dogs in South America that began when the first canids arrived about 3 Ma, after crossing the Panama land bridge (Fig. 5.4). — 2016