'Mesial' definitions:
Definition of 'mesial'
(from WordNet)
adjective
Being in or directed toward the midline or mesial plane of the body [ant: distal]
Definition of 'Mesial'
From: GCIDE
- Mesial \Me"sial\ (?; 277), a. [Gr. me`sos middle.] (Anat.) Middle; median; in, or in the region of, the mesial plane; internal; -- opposed to lateral. [1913 Webster]
- Mesial plane. (Anat.) See Meson. [1913 Webster]