sibilation

Noun

WordNet 3.0

Noun (2)

  1. a fricative sound (especially as an expression of disapproval)“the performers could not be heard over the hissing of the audience”Synonyms: hisshissinghushingfizzle
  2. pronunciation with a sibilant (hissing or whistling) soundSynonyms: assibilation
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Webster's Dictionary (GCIDE)

Sibilation \Sib`i*la"tion\, n. [L. sibilatio.] Utterance with a hissing sound; also, the sound itself; a hiss. [1913 Webster]

He, with a long, low sibilation, stared. --Tennyson. [1913 Webster]

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