Nasal labialized velar approximant

The nasal labio-velar approximant is a type of consonantal sound used in some languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨w̃⟩, that is, a w with a tilde. The equivalent X-SAMPA symbol is w~.

The nasal approximants [ȷ̃] and [w̃] may also be called nasal glides. In some languages like Portuguese, they form a second element of nasal diphthongs.

Features

Features of the nasal labio-velar approximant:

• Its manner of articulation is approximant, which means it is produced by narrowing the vocal tract at the place of articulation, but not enough to produce a turbulent airstream.

• Its place of articulation is labialized velar, which means it is articulated with the back part of the tongue raised toward the soft palate (the velum) while rounding the lips.

• Its phonation is voiced, which means the vocal cords vibrate during the articulation.

• It is a nasal consonant, which means air is allowed to escape through the nose, either exclusively (nasal stops) or in addition to through the mouth.

• It is a central consonant, which means it is produced by directing the airstream along the center of the tongue, rather than to the sides.

• The airstream mechanism is pulmonic, which means it is articulated by pushing air solely with the lungs and diaphragm, as in most sounds.

Occurrence

See also

• Palatal nasal
• Nasal palatal approximant
• Labiodental nasal, which may be an approximant in the one language in which it is phonemic
• Voiceless nasal glottal approximant
• Index of phonetics articles

References

Bibliography

International Phonetic Alphabet
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Consonants IPA pulmonic consonantschart image • audio Place → Labial Coronal Dorsal Laryngeal ↓ Manner Bilabial Labio­dental Linguo­labial Dental Alveolar Palato- alveolar Retroflex Alveolo- palatal Palatal Velar Uvular Pharyngeal / Epiglottal Glottal Nasal m̥ m ɱ n̼̊ n̼ n̥ n ɳ̊ ɳ ɲ̊ ɲ ŋ̊ ŋ ɴ̥ ɴ Stop p b p̪ b̪ t̼ d̼ t d ʈ ɖ c ɟ k ɡ q ɢ ʡ ʔ Sibilant affricate ts dz tʃ dʒ ʈʂ ɖʐ tɕ dʑ Non-sibilant affricate pɸ bβ p̪f b̪v tθ dð tθ̠ dð̠ t̠ɹ̠̊˔ d̠ɹ̠˔ cç ɟʝ kx ɡɣ qχ ɢʁ ʡħ ʡʕ ʔh Sibilant fricative s z ʃ ʒ ʂ ʐ ɕ ʑ Non-sibilant fricative ɸ β f v θ̼ ð̼ θ ð θ̱ ð̠ ɹ̠̊˔ ɹ̠˔ ç ʝ x ɣ χ ʁ ħ ʕ h ɦ ʔ̞ Approximant ʋ̥ ʋ ɹ̥ ɹ ɻ̊ ɻ j̊ j ɰ̊ ɰ Flap or tap ⱱ̟ ⱱ ɾ̼ ɾ̥ ɾ ɽ̊ ɽ ɢ̆ ʡ̮ Trill ʙ r̼ r̥ r ɽr̥ ɽr ʀ̥ ʀ ʜ ʢ Lateral affricate tɬ dɮ ʈɭ̊˔ cʎ̥˔ kʟ̝̊ ɡʟ̝ Lateral fricative ɬ ɮ ɭ̊˔ ʎ̥˔ ʎ̝ ʟ̝̊ ʟ̝ Lateral approximant l̼ l̥ l ɭ̊ ɭ ʎ̥ ʎ ʟ̥ ʟ ʟ̠ Lateral flap ɺ̼ ɺ ɭ̆ ʎ̮ ʟ̆ Non-pulmonic consonants Simple clicks ʘ ʘ̬ ʘ̃ ǀ ǀ̬ ǀ̃ ǃ ǃ̬ ǃ̃ ǂ ǂ̬ ǂ̃ ǁ ǁ̬ ǁ̃ ǃ˞ ǃ̬˞ ǃ̃˞ Other clicks ʘ̃ˀ ʘˀ ˀʘ̃ ʘ͡q ʘ͡qχ ʘ͡qʼ ʘ͡qχʼ ¡ ʞ Implosives ɓ ɗ ᶑ ʄ ɠ ʛ ɓ̥ ɗ̥ ᶑ̥ ʄ̊ ɠ̊ ʛ̥  Ejectives pʼ tʼ ʈʼ cʼ kʼ qʼ ʡʼ fʼ θʼ sʼ ɬʼ ʃʼ ʂʼ ɕʼ xʼ χʼ tsʼ tɬʼ tʃʼ ʈʂʼ tɕʼ cʎ̝̥ʼ kxʼ kʟ̝̊ʼ qχʼ Co-articulated consonants Continuants ʍ w ɥ̊ ɥ ɫ Occlusives k͡p ɡ͡b ŋ͡m ɧ t͡p d͡b n͡m q͡ʡ — These tables contain phonetic symbols, which may not display correctly in some browsers. [Help] — Where symbols appear in pairs, left–right represent the voiceless–voiced consonants. — Shaded areas denote pulmonic articulations judged to be impossible or not distinctive. Chart image Pulmonics Non-pulmonics Affricates Co-articulated
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