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Noun: oscitance
  1. Drowsiness and dullness manifested by yawning
    - oscitancy
  2. An involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom
    - yawn, yawning, oscitancy, oscitation

Derived forms: oscitances

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