mediant medianly • mediastinal · · · Info · Definitions · Characters · · mediant · · Text Latin · · Script 7 · · Length Definitions · · · (noun) (music) the third note of a diatonic scale; midway between the tonic and the dominant. · · Noun Definition 1 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E t latin small letter t U+0074