WordWeb Online

1. (phonetics) Any sound articulated with the tongue near or touching the back of the alveolar ridge.
   "The sibilant postalveolars (i.e. fricatives and affricates) are sometimes called "hush consonants" because they include the sound of English Shhh! (as distinguished from the "hiss consonant" [s], as in Ssss!).";
   - post-alveolar, post-alveolar consonant, postalveolar consonant

Type of: consonant

Encyclopedia: Postalveolar