groove fricative

groove fricative (plural groove fricatives)

1. (phonetics) A hissing or hushing sound such as the s or sh in sack or shack.
   • 1955, H. A. Gleason, An Introduction to Descriptive Linguistics, page 194, section 14.7:

     Groove fricatives all have more or less of an [s]-like quality, and are for this reason sometimes called sibilants.

• (phonetics): sibilant

• fricative
• lateral fricative
• slit fricative