Definition of radiation:
dissipation, fallout, radiation syndrome, actinotherapy, radioactivity, circulation, shaft, spread, radiation sickness, beam of light, radiation therapy, emission, transmission, divarication, ray, pollution, shaft of light, irradiation, ramification, broadcast, propagation, radiotherapy, ray of light, light beam, X-rays.
- dispersion (part of speech: noun)
- light (part of speech: noun)
- "Disturbing Sun", Robert Shirley Richardson.
- "The Planet Strappers", Raymond Zinke Gallun.
- "The Colors of Space", Marion Zimmer Bradley.