Definitions for "Mesial"
Keywords:  midline, tooth, buccal, closest, dental
Middle; median; in, or in the region of, the mesial plane; internal; -- opposed to lateral.
The surface of the tooth nearest the midline of the dental arch
Pertaining to the position of a tooth surface nearest the midline (junction between the central incisors) of the mouth.
referring to or toward the middle.