pronucleus

noun pro·nu·cle·us \ (ˌ)prō-ˈnü-klē-əs , -ˈnyü- \

Definition of pronucleus

: the haploid nucleus of a male or female gamete (such as an egg or sperm) up to the time of fusion with that of another gamete in fertilization

Origin and Etymology of pronucleus

New Latin


Medical Dictionary

pronucleus

noun pro·nu·cle·us \ (ˈ)prō-ˈn(y)ü-klē-əs \

medical Definition of pronucleus

plural -clei play \-klē-ˌī\ also pronucleuses
: the haploid nucleus of a male or female gamete (as an egg or sperm) up to the time of fusion with that of another gamete in fertilization — see female pronucleus, male pronucleus

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