Medial

прилагательное 1) срединный Синоним(ы): middle 2) средний 3) имеющий стандартную величину

Большой англо-русский словарь

Medial

adjective Etymology: Late Latin medialis, from Latin medius 1. mean, average 2. a. being or occurring in the middle b. extending toward the middle; especially lying or extending toward the median axis of the body 3. situated between the extremes of initial and final in a word or morpheme • medial nounmedially adverb

Merriam-Webster's Collegiate Dictionary