In phonetics and phonology, a bilabial stop is a type of consonantal sound, made with both lips (hence bilabial), held tightly enough to block the passage of air (hence a stop consonant). The most common sounds are the stops [p] and [b], as in English pit and bit, and the voiced nasal [m]. [1] More generally, several kinds are distinguished:
- [p], voiceless bilabial plosive[2]
- [b], voiced bilabial plosive
- [m], voiced bilabial nasal
- [m̥], voiceless bilabial nasal
- [ɓ], voiced bilabial implosive
- [pʼ], bilabial ejective (rare)
- [ɓ̥] or [pʼ↓], voiceless bilabial implosive (very rare)
References
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