/ Thesaurus / H Synonyms of hydrochoerus hydrochaeris Find synonyms for: Noun1. capybara, capibara, Hydrochoerus hydrochaeris, rodent, gnawerusage: pig-sized tailless South American amphibious rodent with partly webbed feet; largest living rodentWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language