'oscitancy' definitions:

Drowsiness and dullness manifested by yawning [syn: oscitancy, oscitance]

An involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom; "he could not suppress a yawn"; "the yawning in the audience told him it was time to stop"; "he apologized for his oscitancy" [syn: yawn, yawning, oscitance, oscitancy]