Noun | 1.oscitance - drowsiness and dullness manifested by yawningoscitancydullness, obtuseness - the quality of being slow to understanddrowsiness, sleepiness, somnolence - a very sleepy state; "sleepiness causes many driving accidents" | | 2. 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"yawn, yawning, oscitancypandiculation - yawning and stretching (as when first waking up)inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, reflex action, reflex response, unconditioned reflex - an automatic instinctive unlearned reaction to a stimulus |