Breadcrumb Home > Thesaurus > B Synonyms of backcross Find synonyms for: Verb 1. backcross, crossbreed, cross, hybridize, hybridise, interbreed usage: mate a hybrid of the first generation with one of its parents WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of backcross (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language