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1. Drowsiness and dullness manifested by yawning
   - oscitance
    
2. An involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom
   "he apologized for his oscitancy"
   - yawn, yawning, oscitance, oscitation []

Derived forms: oscitancies

See also: oscitant

Type of: dopiness, drowsiness, dullness, inborn reflex, innate reflex, instinctive reflex, obtuseness, physiological reaction, reflex, reflex action, reflex response, sleepiness, somnolence, unconditioned reflex