actinotherapy
noun
ac·ti·no·ther·a·py
-ˈther-ə-pē 
plural actinotherapies
: application for therapeutic purposes of the chemically active rays of the electromagnetic spectrum (as ultraviolet light or X-rays)
Cite this Entry
“Actinotherapy.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/actinotherapy. Accessed 19 Jul. 2025.
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