/ Thesaurus / O Synonyms of optical maser Find synonyms for: Noun1. laser, optical maser, optical deviceusage: an acronym for light amplification by stimulated emission of radiation; an optical device that produces an intense monochromatic beam of coherent lightWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language