名词困倦; 不活跃; 冷淡; 漠不关心
1. 呵欠：oscillometry示波测量法 | oscitancy呵欠 | OseretskyTestsofMotorProficiency奥氏运动能力测验
2. 冷淡：oscine /鸣禽类的/鸣禽类的鸟/ | oscitancy /冷淡/ | osculant /密接的/接吻的/中间型的/
noun
1. an involuntary intake of breath through a wide open mouth
usually triggered by fatigue or boredom
e.g. he could not suppress a yawn
the yawning in the audience told him it was time to stop
he apologized for his oscitancy
2. drowsiness and dullness manifested by yawning
Synonym: oscitance