Definitions of mesial

  1. being in or directed toward the midline or mesial plane of the body Wordnet Dictionary DB
  2. Middle; median; in, or in the region of, the mesial plane; internal; - opposed to lateral. Webster Dictionary DB
  3. Middle; an epithet applied to a longitudinal line dividing the body, or any member or organ, into two equal parts. Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914.
  4. In anat., middle; dividing into two equal parts. Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
  5. In the middle vertical or longitudinal plane. A dictionary of scientific terms. By Henderson, I. F.; Henderson, W. D. Published 1920.