1) Pertaining to allophones 2) Phoneme 
[adj] - pertaining to allophones
allophone, allophonic 1. One of the slightly differing forms that the same single speech sound (phoneme) can take. One of two or more articulatorily and acoustically different forms of the same phoneme; the aspirated p of 'pin' and the nonaspirated p of 'spin' are allophones of the phoneme p. 2. An immigrant in Quebec who speaks neither English no...
adjective pertaining to allophones