Bible Dictionaries
Sibilant

Webster's Dictionary

(1):

(n.) A sibiliant letter.

(2):

(a.) Making a hissing sound; uttered with a hissing sound; hissing; as, s, z, sh, and zh, are sibilant elementary sounds.

Bibliography Information
Webster, Noah. Entry for 'Sibilant'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​s/sibilant.html. 1828.