medial-containing Chinese syllable
In Chinese phonology, refers to a syllable that has a medial (glide) between the initial consonant and the main vowel, such as -i- or -u-.
In Chinese phonology, 合口音 refers to syllables that contain a medial.
long 'o' from vowel fusion
In Japanese historical phonology, the long 'o' sound that results from the combination of 'o' + 'u' or 'e' + 'u' within a word.
In Japanese historical linguistics, 合口音 can refer to the long vowel arising from the fusion of 'o' and 'u' or 'e' and 'u'.