cardinal vowel

noun
🔊/ˌkɑːdɪnl ˈvaʊəl/
🔊/ˌkɑːrdɪnl ˈvaʊəl/
(phonetics语音学)
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  1. one of a set of vowels that are used as reference points when describing the vowels in a particular language基本元音;定位元音;正则元音