Source : Webster's Revised Unabridged Dictionary (1913)

Media \Me"di*a\, n.; pl. {Medi[ae]} (-[=e]). [NL., fr. L. medius
   middle.] (Phonetics)
   One of the sonant mutes [beta], [delta], [gamma] (b, d, g),
   in Greek, or of their equivalents in other languages, so
   named as intermediate between the tenues, [pi], [tau],
   [kappa] (p, t, k), and the aspirat[ae] (aspirates) [phi],
   [theta], [chi] (ph or f, th, ch). Also called {middle mute},
   or {medial}, and sometimes {soft mute}.