RADIATIONS
- The emission of energy as electromagnetic waves or as moving subatomic particles, esp. high-energy particles that cause ionization
- The energy transmitted in this way, as heat, light, electricity, etc
- Divergence out from a central point, in particular evolution from an ancestral animal or plant group into a variety of new forms
- RADIATION, heat transport without the intervention of matter, as in the transport of heat from the Sun to the Earth [n]