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Lateral release
◌ˡ
IPA number 426
Airstreams
Related

A lateral is an L-like consonant, in which airstream proceeds along the sides of the tongue, but is blocked by the tongue from going through the middle of the mouth.

Most commonly the tip of the tongue makes contact with the upper teeth (see dental consonant) or the upper gum (the alveolar ridge) just behind the teeth (see alveolar consonant). The most common laterals are approximants and belong to the class of liquids, though lateral fricatives and affricates are common in some parts of the world.

The labiodental fricatives [f] and [v] often—perhaps usually—have lateral airflow, as the lip blocks the airflow in the center, but they are nonetheless not considered lateral consonants because no language makes a distinction between the two possibilities. Plosives are never lateral—although they may have lateral release—and the distinction is meaningless for nasal stops and for consonants articulated in the throat.

Consonants are not necessarily lateral or central. Some, such as Japanese r, are not defined by centrality; Japanese r varies between a central flap [ɾ] and a lateral flap [ɺ].

Examples[edit]

English has one lateral phoneme: the lateral approximant /l/, which in many accents has two allophones. One, found before vowels as in lady or fly, is called clear l, pronounced as the alveolar lateral approximant [l] with a "neutral" position of the body of the tongue. The other variant, so-called dark l found before consonants or word-finally, as in bold or tell, is pronounced as the velarized alveolar lateral approximant [ɫ] with the tongue assuming a spoon-like shape with its back part raised, which gives the sound a [w]- or [ʟ]-like resonance. In some languages, like Albanian, those two sounds are different phonemes. East Slavic languages contrast [ɫ] and [lʲ] but do not have a plain [l].

In many British accents (e.g. Cockney), dark [ɫ] may undergo vocalization through the reduction and loss of contact between the tip of the tongue and the alveolar ridge, becoming a rounded back vowel or glide. This process turns tell into something like [tɛɰ]. A similar process happened during the development of many languages, including Brazilian Portuguese, Old French, and Polish, in all three of these resulting in [ɰ] or [w], whence Modern French sauce as compared with Spanish salsa, or Polish Wisła (pronounced [viswa]) as compared with English Vistula.

In central and Venice dialects of Vèneto, intervocalic /l/ has turned into a semivocalic [e̯], so that the written word ła bała is pronounced [abae̯a]. The orthography uses the letter ł to represent this phoneme (not that it doesn't specifically represent the [e̯] sound, it represents the phoneme which in some dialects is [e̯] and in some [l]).

Many aboriginal Australian languages have a series of three or four lateral approximants, as do various dialects of Irish. Rarer lateral consonants include the retroflex laterals that can be found in many Languages of India[citation needed] and in some Swedish dialects, and the voiceless alveolar lateral fricative /ɬ/, found in many Native North American languages, Welsh and Zulu . In Adyghe and some Athabaskan languages like Hän both voiceless and voiced alveolar lateral fricatives occur, but there is no approximant. Many of these languages also have lateral affricates. Some languages have palatal or velar voiceless lateral fricatives or affricates, such as Dahalo and Zulu but the IPA has no symbols for these sounds. However, appropriate symbols are easy to make by adding a lateral-fricative belt to the symbol for the corresponding lateral approximant (see below). Failing that, a devoicing diacritic is added to the approximant.

Nearly all languages with such lateral obstruents also have the approximant. However, there are a number of exceptions, many of them located in the Pacific Northwest area. For example, Tlingit has /tɬ, tɬʰ, tɬʼ, ɬ, ɬʼ/ but no /l/.[1] Other examples from the same area include Nuu-chah-nulth and Kutenai, and elsewhere, Chukchi and Kabardian.

Standard Tibetan has a voiceless lateral approximant, usually romanized as lh, as in the name Lhasa.

Pashto has a retroflex lateral flap.[citation needed]

There are a large number of lateral click consonants; seventeen occur in !Xóõ.

Lateral trills are possible (but occur in no known language). It is also possible to articulate uvular laterals, but they are also too hard to pronounce[citation needed] to occur as a phoneme in any known language.

List of laterals[edit]

Approximants[edit]

Fricatives[edit]

Affricates[edit]

Flaps[edit]

Ejective[edit]

Clicks[edit]

Other symbols[edit]

The symbol for the voiceless alveolar lateral fricative [ɬ] forms the basis for the occasional ad hoc symbols for other voiceless lateral fricatives—retroflex, palatal, and velar (the latter two only known from affricates):

ɭ with belt, ʎ with belt, ʟ with belt

The symbol for the alveolar lateral flap [ɺ] is the basis for the expected symbol for the retroflex lateral flap:

ɺ with hook

Such symbols are rare, but are becoming more common now that font-editing software has become accessible. The letter for the voiceless retroflex lateral fricative was included in Unicode 6.0 as U+A78E latin small letter l with retroflex hook and belt (HTML: ꞎ), with the annotation, voiceless lateral retroflex fricative, used to transcribe Toda.[2][3] Everson Mono has a glyph for this code point. Note however that this is not sanctioned by the IPA. There are no Unicode code points assigned for the other letters, except that "ɭ with belt" and "ɺ with retroflex hook" can be represented as composite characters (ɬ or ɺ, followed by U+0322 ̢ combining retroflex hook below (HTML: ̢)). Also note that although the Charis SIL and Doulos SIL fonts have those glyphs in the Private Use Area (PUA), PUA code points should not be used for data exchange.

Notes[edit]

  1. ^ Some older Tlingit speakers do have [l], as an allophone of /n/. This can also be analyzed as phonemic /l/ with an allophone [n].
  2. ^ "Proposed New Characters: Pipeline Table". Unicode, Inc. 2009-08-18. Retrieved 2009-09-18. 
  3. ^ "Amendment 7: Mandaic, Batak, Brahmi, and other characters (FPDAM, JTC1/SC2/WG2 N3657)" (PDF). ISO/IEC 10646. ISO/IEC. 2009. pp. 17–19. Retrieved 2009-09-19.  See also N3481 (PDF) and N3658 (PDF), p.4.

See also[edit]

References[edit]


Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Lateral_consonant — Please support Wikipedia.
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