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Meaning of karyogamy

kar•y•og•a•my

Pronunciation: (kar"ē-og'u-mē), [key]
— n. Cell Biol.
  1. the fusion of the nuclei of cells, as in fertilization. Cf. plasmogamy.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.