from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The smaller of two nuclei in ciliate protozoans that contains genetic material and functions in reproduction.

from The Century Dictionary.

  • noun A small nucleus: distinguished from macronucleus.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biology A small nucleus.
  • noun biology The smaller of the nuclei of a ciliate protozoan.


Sorry, no etymologies found.



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