Oscitance and Physiological reaction

Oscitance noun - An involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom.

Physiological reaction and oscitance are semantically related. In some cases you can use "Physiological reaction" instead a noun "Oscitance".

Physiological reaction noun - An automatic instinctive unlearned reaction to a stimulus.

Oscitance and physiological reaction are semantically related. Sometimes you can replace term "Oscitance" with "Physiological reaction", this terms are similar.