Voiceless bidental fricative

A voiceless bidental fricative is a rare consonantal sound found in one natural language, in the Shapsug dialect of Adyghe, where it appears as a variant of. People with hypoglossia may use it for target. It has been represented in the extIPA as, but since there is no frication at the velar place of articulation, it is thus better transcribed as and the extIPA chart uses the latter.

Features

Features of a voiceless bidental fricative:

Its place of articulation is bidental, which means it is articulated with the lower and upper teeth pressed together.