from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The treatment of disease, especially skin disease, by exposure to ultraviolet light; radiotherapy.
from The Century Dictionary and Cyclopedia
- n. Same as radiotherapy.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance
From actino- + therapy. (Wiktionary)