radiation

noun

1. 1

   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.

2. 2

   The process of radiating waves or particles.

3. 3

   The transfer of energy via radiation.

4. 4

   Radioactive energy.

   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

5. 5

   A rapid diversification of an ancestral species into many new forms.

   So the question is: have plants and animals retained over this huge amount of time—whole radiations of mammals have come and gone in this period—have they retained these potentially costly characteristics?

   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).

6. 6

   Variant of electromagnetic radiationThe shooting forth of anything from a point or surface, like diverging rays of light. Ellipsis of electromagnetic radiation.

   heat radiation

Forms

plural

radiations