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Central consonant

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Title: Central consonant  
Author: World Heritage Encyclopedia
Language: English
Subject: Khanty language, Dental, alveolar and postalveolar flaps, Uvular trill, Voiced alveolar affricate, Cocopah language
Collection: Consonants
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Central consonant

A central consonant is a consonant sound that is produced when air flows across the center of the mouth over the tongue. The class contrasts with lateral consonants, in which air flows over the sides of the tongue rather than down its center.

Examples of central consonants are the voiced alveolar fricative (the "z" in the English word "zoo") and the palatal approximant (the "y" in the English word "yes"). Others are the central fricatives [θ ð s z ʃ ʒ ʂ ʐ ɕ ʑ ç ʝ x ɣ χ ʁ], the central approximants [ɹ ɻ j ɥ ɰ w ʍ], the trills [r ʀ], and the central flaps [ɾ ɽ].

The term is most relevant for approximants and fricatives (for which there are contrasting lateral and central consonants - e.g. [l] versus [ɹ] and [ɮ] versus [z]). Stops that have "lateral release" can be written in the International Phonetic Alphabet using a superscript symbol, e.g. [tl ], or can be implied by a following lateral consonant, e.g. [tɬ]. The labial fricatives [f v] often—perhaps usually—have lateral airflow, as the lip blocks the airflow in the center, but nonetheless they are not considered lateral consonants because no language makes a distinction between the two.

In some languages, the centrality of a consonant may be indeterminate. In Japanese, for example, there is a flap consonant that may be either central or lateral, typically central before a front vowel, as in ri [ɾi], and lateral before a back vowel, as in ro [ɺo]. Transcribing the phoneme r as either /ɾ/ or /ɺ/ gives the false impression that it is one or the other, when the category does not apply.

See also

References

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