Bidental consonant
Encyclopedia
Bidental consonants are consonants pronounced with both the lower and upper teeth. They are normally found only in speech pathology. The Extensions to the IPA
Extensions to the IPA
The Extensions to the IPA are extensions of the International Phonetic Alphabet and were designed for disordered speech. However, some of the symbols are occasionally used for transcribing normal speech as well, particularly in certain languages.-Brackets:The Extended IPA for speech pathology has...

 symbol is both a superscript and a subscript bridge, [  ̪͆].

Besides interdental consonant
Interdental consonant
Interdental consonants are produced by placing the blade of the tongue against the upper incisors...

s such as [n̪͆], which involve the tongue, there is at least one confirmed attestation of a true bidental consonant in normal language. The Black Sea
Black Sea
The Black Sea is bounded by Europe, Anatolia and the Caucasus and is ultimately connected to the Atlantic Ocean via the Mediterranean and the Aegean seas and various straits. The Bosphorus strait connects it to the Sea of Marmara, and the strait of the Dardanelles connects that sea to the Aegean...

 sub-dialect of the Shapsug dialect of Adyghe
Adyghe language
Adyghe language , also known as West Circassian , is one of the two official languages of the Republic of Adygea in the Russian Federation, the other being Russian. It is spoken by various tribes of the Adyghe people: Abzekh, Adamey, Bzhedugh; Hatukuay, Kemirgoy, Makhosh; Natekuay, Shapsigh; Zhane,...

 has a voiceless bidental non-sibilant fricative
Voiceless bidental fricative
The voiceless bidental non-sibilant fricative is a type of consonantal sound used in some spoken languages. The only natural language known to use it is the Shapsug dialect of Adyghe...

 where other dialects have [x], such as "six" and daxə "pretty". Therefore it might best be transcribed phonemically as /x̪͆/. However, there is no frication at the velum
Soft palate
The soft palate is the soft tissue constituting the back of the roof of the mouth. The soft palate is distinguished from the hard palate at the front of the mouth in that it does not contain bone....

. The teeth themselves are the only constriction: "The lips [are] fully open, the teeth clenched and the tongue flat, the air passing between the teeth; the sound is intermediate between [ʃ] and [f]" (L&M 1996:144-145). This can be transcribed phonetically as [h̪͆], since [h] has no place of articulation of its own.

The Extensions to the IPA specify one other purely bidental consonant sound, the bidental percussive.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK