/ Thesaurus / C Synonyms of crossing over Find synonyms for: Noun1. crossing over, crossover, organic process, biological processusage: the interchange of sections between pairing homologous chromosomes during the prophase of meiosisWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language