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from the GNU version of the Collaborative International Dictionary of English

  • n. See under Facial.
  • adj. the angle, in a skull, included between a straight line (ab, in the illustrations), from the most prominent part of the forehead to the front efge of the upper jaw bone, and another (cd) from this point to the center of the external auditory opening. See Gnathic index, under Gnathic.


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