/ Thesaurus / J Synonyms of jumping mouse Find synonyms for: Noun1. jumping mouse, rodent, gnawerusage: any of several primitive mouselike rodents with long hind legs and no cheek pouches; of woodlands of Eurasia and North AmericaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language