Breadcrumb Home > Thesaurus > K Synonyms of kelvin Find synonyms for: Noun 1. kelvin, K, temperature unit usage: the basic unit of thermodynamic temperature adopted under the Systeme International d'Unites 2. Kelvin, First Baron Kelvin, William Thompson usage: British physicist who invented the Kelvin scale of temperature and pioneered undersea telegraphy (1824-1907) WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of kelvin (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: antebellum Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language