1. relating to or situated in the middle; median or mesial (especially in anatomy, referring to structures toward the midline of the body)
Usage: technical/medical; often used in dental and anatomical contexts

Examples

• The mesian surface of the tooth faces toward the center of the mouth.
• In anatomical terminology, mesian structures are positioned toward the body's midline.
• The dentist examined the mesian aspect of the incisor.
• Mesian displacement of the tooth required orthodontic correction.