Search Result for "allophone": 
Wordnet 3.0

NOUN (1)

1. (linguistics) any of various acoustically different forms of the same phoneme;


The Collaborative International Dictionary of English v.0.48:

allophone \allophone\ n. any one of two or more speech sounds that considered variants of the same phoneme. For example, the p sounds of pin and spin are allophones of p; and the t sounds of toe stop and catnip are allophones of t. [PJC]
WordNet (r) 3.0 (2006):

allophone n 1: (linguistics) any of various acoustically different forms of the same phoneme