Sulcalization

Sulcalization, in phonetics, is the pronunciation of a sound, typically a sibilant consonant, such as English and, with a deep groove running along the back of the tongue that focuses the airstream on the teeth, producing a more intense sound. That is accomplished by raising the sides of the back of the tongue and leaving a hollow along the mid-line. It is not clear if all sibilants are so grooved: Catford (1977) observed that the degree of sulcalization differs between places of articulation as well as between languages, but no language is known to contrast a grooved and non-grooved sibilant.


Sulcalization, in phonetics, is the pronunciation of a sound, typically a sibilant consonant, such as English and, with a deep groove running along the back of the tongue that focuses the airstream on the teeth, producing a more intense sound. That is accomplished by raising the sides of the back of the tongue and leaving a hollow along the mid-line. It is not clear if all sibilants are so grooved: Catford (1977) observed that the degree of sulcalization differs between places of articulation as well as between languages, but no language is known to contrast a grooved and non-grooved sibilant.
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