名詞 vocalism:

1. the system of vowels used in a particular language
   同義詞：vowel system
2. the sound made by the vibration of vocal folds modified by the resonance of the vocal tract
   同義詞：voice, vocalization, vocalisation, phonation, vox

vo.cal.ism

n.（名詞）
Use of the voice in speaking or singing.
發(fā)聲術(shù)：在說唱中嗓音的運(yùn)用
Music The act, technique, or art of singing.
【音樂】 歌唱：歌唱的行為、技巧或藝術(shù)
Linguistics
【語言學(xué)】
A vowel sound.
元音
A system of vowels used in a language or dialect.
元音系統(tǒng)：用于語言或方言的元音系統(tǒng)

【引伸】
vo.calis.tic
adj.（形容詞）