sibilant

名词 sibilant:

1. a consonant characterized by a hissing sound (like s or sh)
   同义词：sibilant consonant

形容词 sibilant:

1. of speech sounds produced by forcing air through a constricted passage (as `f', `s', `z', or `th' in both `thin' and `then')
   同义词：fricative, continuant, spirant, strident