円えん唇しん母ぼ音いん

え

ん

し

ん

ぼ

い

ん

Meanings

1

noun

rounded vowel

linguistics

Linguistics term for a vowel produced with rounded lips, such as Japanese /u/ or /o/.

円circle, yen, round

唇lips

母mother

音sound, noise

平へい唇しん母ぼ音いん
Refers to unrounded vowels, produced without lip rounding, in contrast to 円唇母音.

Compound of 円唇 (round lips) and 母音 (vowel), a calque from Western linguistic terminology.