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Pronunciation: mez-or'ke-um


  1. In the fetus, a fold of tunica vaginalis testis supporting the mesonephros and the developing testis.
  2. In the adult, a fold of tunica vaginalis testis between the testis and epididymis.

[meso- + G. orchis, testis]

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