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
From the M-W Editors
Origin and Etymology of pronucleus
New Latin
Medical Dictionary
pronucleus
play
noun
pro·nu·cle·us
\(ˈ)prō-ˈn(y)ü-klē-əs\
Medical Definition of pronucleus
pronuclei
\-klē-ˌī\play alsopronucleuses
: 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
Learn More about pronucleus
-
Britannica.com: Encyclopedia article about pronucleus
Seen and Heard
What made you want to look up pronucleus? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!