Features
Features of dental clicks:
- The basic articulation may be voiced, nasal, aspirated, glottalized, etc.
- The forward place of articulation is typically dental (or denti-alveolar) and laminal, which means it is articulated with the tip of the tongue against the alveolar ridge or the upper teeth, but depending on the language may be interdental or even apical. The release is a noisy, affricate-like sound.
- Clicks may be oral or nasal, which means that the airflow is either restricted to the mouth, or passes through the nose as well.
- They are central consonants, which means they are produced by releasing the airstream at the center of the tongue, rather than at the sides.
- The airstream mechanism is lingual ingressive (aka velaric ingressive), which means a pocket of air trapped between two closures is rarefied by a "sucking" action of the tongue, rather than being moved by the glottis or the lungs/diaphragm. The release of the forward closure produces the 'click' sound. Voiced and nasal clicks have a simultaneous pulmonic egressive airstream.
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