Definitions

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

  • noun An irregular aggregation of chromatin in the nucleus of a cell not undergoing mitosis.

from The Century Dictionary.

  • noun A nucleolus-like mass of chromatin in the cell-nucleus: distinguished from the plasmosome, or true nucleolus.
  • noun A chromosome.
  • noun A micronucleus of the Infusoria.

Etymologies

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