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

WordNet Word definitions in WordNet
n. (linguistics) any of various acoustically different forms of the same phoneme

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
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.

Wikipedia Word definitions in Wikipedia
In Quebec , an allophone is a resident, usually an immigrant, whose mother tongue or home language is neither French nor English . The term can also be sometimes used in other parts of Canada . The term parallels Anglophone ( English-speaker ), and Francophone ...

Wiktionary Word definitions in Wiktionary
n. 1 (context phonetics English) Any of two or more alternative pronunciations for a phoneme. 2 (context Canada English) A person whose mother tongue is neither English nor French.