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Pronunciation: mes'o, mes


  1. Middle, mean, intermediacy.
  2. A mesentery, mesentery-like structure.
  3. A prefix denoting a compound, containing more than one chiral center, having an internal plane of symmetry; such compounds do not exhibit optical activity (meso-cystine).

[G. mesos]

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