Definitions

from The Century Dictionary.

  • noun In cytology, the paranucleus; an extra-nuclear body in the spermatid, arising from the spindle-fibers of the secondary spermatocyte. This name is also given to many other cytoplasmic structures, such as the mitosome and yolk-nucleus.

Etymologies

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Examples

  • Thorell B, Akerman L, Chance B (1959) Localization and assay of respiratory enzymes in single living cells. absorbancy measurements on the nebenkern.

    PLoS ONE Alerts: New Articles William L. Rice et al. 2010

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