BIGpedia - Alveolar ejective fricative - Encyclopedia and Dictionary Online

The alveolar ejective fricative is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is sʼ, and the equivalent X-SAMPA symbol is s_>.

Features

Features of the alveolar ejective fricative:

Its manner of articulation is fricative, which means it is produced by constricting air flow through a narrow channel at the place of articulation, causing turbulence.
Its place of articulation is alveolar which means it is articulated with the tip of the tongue against the alveolar ridge.
Its phonation type is voiceless, which means it is produced without vibrations of the vocal cords.
It is an oral consonant, which means air is allowed to escape through the mouth.
It is a central consonant, which means it is produced by allowing the airstream to flow over the center of the tongue, rather than the sides.
The airstream mechanism is glottalic egressive, which means it is produced by pushing air out of the glottis, rather than from the lungs.