ETYM Latin medialis, from medius middle: cf. French médial. Related to Middle.
Dividing an animal into right and left halves; SYN. median.

ETYM Latin medianus, from medius middle. Related to Medial.
1. Relating to or situated in or extending toward the middle; SYN. medial.
2. (Statistics) Relating to or constituting the middle value of an ordered set of values (or the average of the middle two in an even-numbered set); SYN. average.