Voiceless linguolabial fricative

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Voiceless linguolabial fricative
θ̼
ɸ̺

The voiceless linguolabial fricative is a type of consonantal sound used in some spoken languages. The symbol in the International Phonetic Alphabet that represents it is θ̼ or ɸ̺.

Features[edit]

Features:

  • Its manner of articulation is fricative, which means it is produced by constricting air flow through a narrow channel at the place of articulation, causing turbulence.
  • Its place of articulation is linguolabial, which means it is articulated with the tongue against the upper lip.
  • Its phonation is voiceless, which means it is produced without vibrations of the vocal cords. In some languages the vocal cords are actively separated, so it is always voiceless; in others the cords are lax, so that it may take on the voicing of adjacent sounds.
  • It is an oral consonant, which means air is allowed to escape through the mouth only.
  • The airstream mechanism is pulmonic, which means it is articulated by pushing air solely with the lungs and diaphragm, as in most sounds.

Occurrence[edit]

Language Word IPA Meaning Notes
Big Nambas [ˈinɛθ̼] he is asthmatic [1]

References[edit]