The width of the mouth when opened, as of birds, fishes, etc.
opening between closed valves, usually posterior, through which the siphons or end of body protudes.
the distance from the front to the angle of the mouth, crude index of size of the mouth, crude index of size of mouth; habit of spawning fishes of opening mouth very widely
an expression of open-mouthed astonishment
a stare of amazement (usually with the mouth open)
look with amazement; look stupidly
be wide open; "the deep gaping canyon"
The soft tissue at the corner of the mouth
The corner of the mouth, or the widest opening of the mouth.