(in many male frogs) a loose fold of skin on each side of the mouth, which can be inflated to produce sound
folds of membranous tissue that project inward from the sides of the larynx to form a slit across the glottis in the throat, and whose edges vibrate in the airstream to produce the voice
a musical score showing the voice parts in full, but with the accompaniment reduced or omitted
folds of membranous tissue that project inward from the sides of the larynx to form a slit across the glottis in the throat, and whose edges vibrate in the airstream to produce the voice