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Medical Term:


Pronunciation: mi'kro-nu'kle-us


  1. A small nucleus in a large cell, or the smaller nuclei in cells that have two or more such structures.
  2. The smaller of the two nuclei in ciliates dividing mitotically and bearing specific inheritable material.

Synonym(s): gametic nucleus, germ nucleus, gonad nucleus, karyogonad, reproductive nucleus

See Also: macronucleus2

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.