Voiceless retroflex approximant

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Voiceless retroflex approximant
IPA number 152 402A
X-SAMPA r\`_0

The voiceless retroflex approximant is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨ɻ̊⟩, and the equivalent X-SAMPA symbol is r\`_0.


Features of the voiceless retroflex 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 retroflex, which prototypically means it is articulated subapical (with the tip of the tongue curled up), but more generally, it means that it is postalveolar without being palatalized. That is, besides the prototypical subapical articulation, the tongue contact can be apical (pointed) or laminal (flat).
  • 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.
  • 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.


Language Word IPA Meaning Notes
Faroese[1] bert [pɛɻ̊ʈ] 'only' Allophone of /r/.[1] See Faroese phonology


  1. ^ a b Árnason (2011:115)


  • Árnason, Kristján (2011), The Phonology of Icelandic and Faroese, Oxford University Press, ISBN 978-0-19-922931-4