名词摩擦音
1. 摩擦音：spirally 成螺旋形 | spirant 摩擦音 | spire 尖顶
2. 摩擦音;氣擦音;擦音：spiralled teaching method 循環教學法 | spirant 摩擦音;氣擦音;擦音 | spirantization (摩)擦音化
noun
1. a continuant consonant produced by breath moving against a narrowing of the vocal tract
Synonym: fricative consonant fricative
adj
1. of speech sounds produced by forcing air through a constricted passage (as `f', `s', `z', or `th' in both `thin' and `then')
Synonym: fricative continuant sibilant strident