ˈaləˌfōn noun
( -s )
Etymology: allo- (II) + phone
: 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
— compare phone , phoneme
• al·lo·phon·ic |alə|fänik, -ēk adjective