◎ 韵头 yùntóu
[head vowel, any of the three vowels “i”,“u” and “ü”in certain compound vowels, as “i” in “iang”] 介音。是介于主要元音与声母之间的高元音

1.head vowel, any of the three vowels [i], [u] and [ü] in certain compound vowels, as [i] in [iang]

又称介音。某些韵母的组成部分，是介于声母和韵腹之间的高元音。参见“ 韵母 ”。