Anat. [L. vermis worm.] The vermiform process of the cerebellum.

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1890.  Cent. Dict., Postvermis, the vermis inferior of the cerebellum. Ibid., Prevermis, the anterior and prominent part of the vermis of the cerebellum.

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1899.  Allbutt’s Syst. Med., VII. 365. In one [case of cerebellar atrophy] … the vermis was less affected by atrophy than the hemispheres.

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