radiation
/ˌɹeɪ.diˈeɪ.ʃən/ noun
Forms radiations
- noun 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.”
- noun The process of radiating waves or particles.
- noun The transfer of energy via radiation.
- noun Radioactive energy.
- noun (evolutionary theory, countable) A rapid diversification of an ancestral species into many new forms.
Synonyms
EMR radiation sickness radiation syndrome radioactivity radiotherapy radiation therapy actinotherapy irradiation
Etymology
Borrowed from Latin radiatio, radiationis. By surface analysis, radiate + -ion.
Webster’s 1913
- noun The act of radiating, or the state of being radiated; emission and diffusion of rays of light; beamy brightness.
- noun The shooting forth of anything from a point or surface, like the diverging rays of light; as, the radiation of heat.
Etymology [L. radiatio: cf. F. radiation.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “radiation”, CC BY-SA 4.0. Details