The voiceless or more precisely tenuis retroflex click is a rare
click consonant. In practical orthography, an ad hoc symbol ⟨‼⟩ is used for the
retroflex clicks; a tenuis click with a
velar rear articulation is ⟨k͡‼⟩ or ⟨k͜‼⟩, commonly abbreviated to ⟨k‼⟩, ⟨ᵏ‼⟩ or just ⟨‼⟩.
The implicit symbol in the
International Phonetic Alphabet is ⟨k͡𝼊⟩ or ⟨k͜𝼊⟩, abbreviated ⟨k𝼊⟩, ⟨ᵏ𝼊⟩ or just ⟨𝼊⟩.[1] Linguists who prefer the
old IPA letters use the analogous
Doke convention[2] of ⟨k͡ψ⟩ or ⟨k͜ψ⟩, abbreviated ⟨kψ⟩, ⟨ᵏψ⟩ or ⟨ψ⟩. For a click with a
uvular rear articulation, the equivalents are ⟨q͡‼, q͜‼, q‼, 𐞥‼⟩, ⟨q͡𝼊, q͜𝼊, q𝼊, 𐞥𝼊⟩ and ⟨q͡ψ, q͜ψ, qψ, 𐞥ψ⟩.
Sometimes the accompanying letter comes after the click letter, e.g. ⟨𝼊k⟩ or ⟨𝼊ᵏ⟩; this may be a simple orthographic choice, or it may imply a difference in the relative timing of the releases.[3]
Features
Features of the tenuis retroflex click:
The
airstream mechanism is
lingual ingressive (also known as velaric ingressive), which means a pocket of air trapped between two closures is rarefied by a "sucking" action of the tongue, rather than being moved by the
glottis or the
lungs/
diaphragm. The release of the forward closure produces the "click" sound. Voiced and nasal clicks have a simultaneous
pulmonic egressive 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 can be
apical (pointed) or, in some fricatives,
laminal (flat).
Its
phonation is voiceless, unaspirated, and unglottalized, which means it is produced without vibration or constriction of the vocal cords, and any following vowel starts
without significant delay.
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.
Occurrence
The tenuis retroflex click is only confirmed from a single language,
Central !Kung.[4]
^Doke, Clement M. (1925). "An outline of the phonetics of the language of the ʗhũ: Bushman of the North-West Kalahari". Bantu Studies. 2: 129–166.
doi:
10.1080/02561751.1923.9676181.
^Scott, Abigail; Miller, Amanda; Namaseb, Levi; Sands, Bonny; Shah, Sheena (June 2, 2010). "Retroflex Clicks in Two Dialects of ǃXung". University of Botswana, Department of African Languages.