SINCE 1828
dikaryon
noun
di·kary·on
variants:
also dicaryon \ (ˈ)dī-ˈkar-ē-ˌän, -ən 
\
\
Medical Definition of dikaryon
1
: a pair of associated but unfused haploid nuclei of a fungus cell capable of participating in repeated cell division as separate entities prior to their ultimate fusion
2
: a cell having or a mycelium made up of cells each having a dikaryon — compare homokaryon
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