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pronuclei
Variant of pronucleus
noun pl. pronuclei
Zool. 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
Related Forms:
- pronuclear adjective
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.