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Brainulator9 (talk | contribs) m IPA formatting; table fix |
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{{about|labial rounding|internal rounding|sulcalization}}
{{Infobox IPA
| above = Labialized (
| ipa symbol = ◌ᵝ
}}
{{Infobox IPA
| above = Labial(-velar)ized with protrusion (
| ipa symbol = ◌ʷ
}}
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'''Labialization''' is a [[Secondary articulation|secondary articulatory]] feature of sounds in some languages. Labialized sounds involve the lips while the remainder of the [[Human mouth|oral cavity]] produces another sound. The term is normally restricted to [[consonant]]s. When vowels involve the lips, they are called [[roundedness|rounded]].
The most common labialized consonants are [[Labialized velar consonant|labialized velars]]. Most other labialized sounds also have simultaneous [[velarization]], and the process may then be more precisely called '''labio-velarization'''. The "labialization" of bilabial consonants often refers to '''protrusion''' instead of a secondary articulatory feature [[velarization]]. {{IPA|[pʷ]}} doesn't mean {{IPA|[pˠ]}} although {{IPA|[w]}} refers to a [[labial–velar approximant]].
In [[phonology]], labialization may also refer to a type of [[Assimilation (linguistics)|assimilation]] process.
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| above = Open-labialized
| ipa symbol = ◌ꟹ
| ipa number =
| decimal1 =
}}
{{Infobox IPA
| above = Labiodentalization
| ipa symbol = ◌ᶹ
| ipa number =
| decimal1 =
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* Labiodental frication, found in [[Abkhaz language|Abkhaz]]<ref name="ARA">{{Cite book|url=https://books.google.com/books?id=ApzO7A7-xcUC&q=abkhaz+labialized|title = Annual Review of Anthropology|year = 1977|isbn = 9780824319069| last1=Siegel | first1=Bernard J. | publisher=Annual Reviews Incorporated }}</ref>
* Labiodentalization is a common idiosyncrasy of English {{IPA|/s/}} and {{IPA|/z/}}, and especially of {{IPA|/r/}}.<ref>John Laver [1994: 321] ''Principles of Phonetics''</ref>
* Complete bilabial closure, {{IPA|[d͡b, t͡p, t͡pʼ]}}, found in Abkhaz and [[Ubykh language|Ubykh]]<ref name="ARA" />
* "Labialization" ({{IPA|/w/}}, {{IPA|/ɡʷ/}}, and {{IPA|/kʷ/}}) without noticeable rounding (protrusion) of the lips, found in the [[Iroquoian languages]]{{Citation needed|date=January 2010}}. It may be that they are [[roundedness|compressed]].{{Citation needed|date=January 2010}}
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| <big>{{IPA|[ɸʷ]}}</big>
| Okinawan, [[Taruma language|Taruma]]
|-
| protruded [[voiced bilabial fricative]]
| |||