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Pronunciation: li'nin


  1. A bitter glycoside obtained from Linum catharticum (family Linaceae).
  2. A protein in linseed.
  3. Obsolete term for the threadlike, nonstaining (achromatic) substance of the cell nucleus, on which chromatin granules were thought to be suspended.

[L. linum, fr. G. linon, flax]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.