schwa

• n. 非中央元音；非重读音节的元音

来自德语 Schwa,非重读元音，来自希伯来语 shewa,中元音，中性元音。如 about 的首字母“a” 所发的“ə”音。

schwa (n.)

1895, from German Schwa, ultimately from Hebrew shewa "a neutral vowel quality," literally "emptiness."

1. a neutral middle vowel; occurs in unstressed syllables