/ Thesaurus / J Synonyms of james prescott joule Find synonyms for: Noun1. Joule, James Prescott Jouleusage: English physicist who established the mechanical theory of heat and discovered the first law of thermodynamics (1818-1889)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language