/ Thesaurus / S Synonyms of solar radiation Find synonyms for: Noun1. solar radiation, radiationusage: radiation from the sunWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language