Breadcrumb Home > Thesaurus > T Synonyms of testcross Find synonyms for: Noun 1. testcross, test-cross, hybridization, hybridisation, crossbreeding, crossing, cross, interbreeding, hybridizing usage: a cross between an organism whose genotype for a certain trait is unknown and an organism that is homozygous recessive for that trait so the unknown genotype can be determined from that of the offspring WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of testcross (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: panache Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language