The 'bilabial nasal' is a type of
consonantal sound used in some spoken
languages. The symbol in the
International Phonetic Alphabet that represents this sound is , and the equivalent
X-SAMPA symbol is
m. The bilabial nasal occurs in
English, and it is the sound represented by "m" in ''map'' and ''bum''.
It occurs nearly universally, and few languages (e.g.,
Mohawk) are known to lack this sound.
Features
Features of the bilabial nasal:
★ Its
manner of articulation is
stop, which means it is produced by obstructing airflow in the vocal tract.
★ Its
place of articulation is
bilabial which means it is articulated with both
lips,
★ Its
phonation type is voiced, which means the vocal cords are vibrating during the articulation.
★ It is a
nasal consonant, which means air is allowed to escape through the nose.
★ It is a
central consonant, which means it is produced by allowing the airstream to flow over the middle of the tongue, rather than the sides.
★ The
airstream mechanism is
pulmonic egressive, which means it is articulated by pushing air out of the
lungs and through the vocal tract, rather than from the
glottis or the mouth.
Occurrence
See also
★
List of phonetics topics