polyphone

名词 polyphone:

1. a letter that has two or more pronunciations
   同义词：polyphonic letter

pol.y.phone

n.Linguistics （名词）【语言学】
A written character or combination of characters having two or more phonetic values, such as the English lettera.
多音字母；多音符号：具有两种或更多音值的一个书面字母或几个字母的组合，如英语字母a