Pronunciation: (sib'u-lunt), [key]
2. Phonet.characterized by a hissing sound; noting sounds like those spelled with s in thisPronunciation: (&thslash;is), [key]rosePronunciation: (rōz), [key]pressurePronunciation: (presh'ur), [key]pleasurePronunciation: (plezh'ur), [key]and certain similar uses of ch, sh, z, zh, etc.
Phonet.a sibilant consonant.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.