Breadcrumb Home > Thesaurus > P Synonyms of pronucleus Find synonyms for: Noun 1. pronucleus, nucleus, cell nucleus, karyon usage: the nucleus of the ovum or sperm after fertilization but before they fuse to form the nucleus of the zygote WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of pronucleus (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: turgid Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language