Definition of Pronucleus in English :

Define Pronucleus in English

Pronucleus meaning in English

Meaning of Pronucleus in English

Pronunciation of Pronucleus in English

Pronucleus pronunciation in English

Pronounce Pronucleus in English


see synonyms of pronucleus


1. pronucleus

the nucleus of the ovum or sperm after fertilization but before they fuse to form the nucleus of the zygote

WordNet Lexical Database for English. Princeton University. 2010.


see synonyms of pronucleus
noun plural -clei (-klɪˌaɪ)
the nucleus of a mature ovum or spermatozoan before fertilization

Collins English Dictionary. Copyright © HarperCollins Publishers


see synonyms of pronucleus
nounWord forms: plural proˈnucleˌi (proʊˈnukliˌaɪ ; prōno̅oˈklēīˌ; proʊˈnjukliˌaɪ ; prōnyo̅oˈklēīˌ)
the haploid nucleus of either the spermatozoon or the ovum which unite in fertilization to form the fused double (or diploid) nucleus of the fertilized ovum, or zygote

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.


see synonyms of pronucleus
n. pl. pro·nu·cle·i (-klē-ī)
The haploid nucleus of a sperm or egg before fusion of the nuclei in fertilization.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.