from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The coming together and fusing of cell nuclei, as in fertilization.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The fusion of two nuclei within a cell, especially as the second stage of syngamy.

from The Century Dictionary and Cyclopedia

  • n. In embryology, the union of two nuclei, as during the fertilization of the egg by the spermatozoön.


From karyo- + -gamy (Wiktionary)


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