Stuck on a problem? Get great tutoring at an affordable price with Chegg
to join and get your 1st 30 minutes Free!
From Biology-Online Dictionary
(Science: physiology) The act of respiring through the open mouth so that the currents of inspired and expired air cause a vibration of the uvula and soft palate, thus giving rise to a sound more or less harsh. It is usually unvoluntary, but may be produced voluntarily.