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pronucleus

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

Definition of pronucleus

  1. :  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



Origin of pronucleus

New Latin


First Known Use: 1880


Medical Dictionary

pronucleus

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

Medical Definition of pronucleus

plural pronuclei \-klē-ˌī\play also pronucleuses

  1. :  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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