/ Thesaurus / A Synonyms of arc lamp Find synonyms for: Noun1. arc lamp, arc light, electric lampusage: a lamp that produces light when electric current flows across the gap between two electrodesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language