Allophone, na.
(Doof alo - and ? ´fono).
1. adj. That speaks a different language.
2. m. Fon. Each of the variants that occur in the pronunciation of a same phoneme, according to this position in the word or syllable, depending on the nature of neighbouring phonemes, etc.; e.g., the b voiceless I lie and the fricative tube are allophones of the phoneme /b/.