median. sing. & pl.1. The latinic plural form of medium, sometimes used as a singular noun with the same meaning as medium; as, (Computers) place your installation media into the device which will read it; (Microbiology) the tuberculosis bacterium will only grow in a special media.()2. The public institutions that report the news, such as newspapers, magazines, radio, and television, collectively; the news media; as, the media were obsessed with Monica Lewinsky for months.()n.[NL., fr. L. medius middle.]1. (Phonetics) One of the sonant mutes , , (b, d, g), in Greek, or of their equivalents in other languages, so named as intermediate between the tenues, , , (p, t, k), and the aspirat (aspirates) , , (ph or f, th, ch). Also called middle mute, or medial, and sometimes soft mute.()