sib·i·lant
adjective/ˈsɪbɪlənt/
/ˈsɪbɪlənt/
(formal or literary)- making a ‘s’ or ‘sh’ sound
发咝咝声的 - the sibilant sound of whispering
窃窃私语声
Word Originmid 17th cent.: from Latin sibilant- ‘hissing’, from the verb sibilare. - the sibilant sound of whispering