Sibilation

[,sibi'leiʃәn]

(noun.) pronunciation with a sibilant (hissing or whistling) sound.

Typed by Jody--From WordNet

(n.) Utterance with a hissing sound; also, the sound itself; a hiss.

Editor: Michel

SYN:Hissing, outcry, disfavor

ANT:Acclamation, cheers, popularity

Typed by Clint