a. Anat. [f. Vidus Vidius, Latinized form of the name of Guido Guidi, an Italian anatomist (died 1569).] The special designation of certain anatomical features of the head, as Vidian artery, canal, nerve.

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1831.  R. Knox, Cloquet’s Anat., 39. The posterior orifice of the vidian canal. Ibid., 473. The superficial petrous filaments of the vidian nerve. Ibid., 663. The Vidian or Pterygoid Artery.

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1840.  E. Wilson, Anat. Vade M. (1842), 279. The Vidian branch passes backwards along the pterygoid canal.

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1875.  Turner, in Encycl. Brit., I. 824/1. At the root of the pterygoid processes is the vidian canal, for the transmission of a nerve of the same name.

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1886.  Buck’s Handbk. Med. Sci., II. 328/2. A small nerve … goes to the spheno-palatine ganglion, and, after being joined by a branch from the carotid plexus, is known as the Vidian nerve.

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