Breadcrumb Home > Thesaurus > P Synonyms of phototherapy Find synonyms for: Noun 1. phototherapy, radiotherapy, radiation therapy, radiation, actinotherapy, irradiation usage: the use of strong light to treat acne or hyperbilirubinemia of the newborn WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of phototherapy (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: jingoism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language