ultraviolet illumination vs ultraviolet radiation

ultraviolet illumination and ultraviolet radiation both are nouns.

Word	Noun	Adjective	Verb	Adverb
ultraviolet illumination	Yes	No	No	No
ultraviolet radiation	Yes	No	No	No

As nouns, ultraviolet illumination and ultraviolet radiation are synonyms defined as:

ultraviolet illumination and ultraviolet radiation: radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays

Other synonyms of ultraviolet illumination include ultraviolet, ultraviolet light, UV.

ultraviolet illumination (noun)	ultraviolet radiation (noun)
radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays	radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays