Reversal

The term jué is explained as meaning

1. sudden clouding reversal, i.e., fainting or syncope.
2. counterflow cold spreading upward from the extremity of the limbs. Thus, jué means disruption (in the flow of qì, blood) and recession of the outward spread (of yáng qì).

The term reversal is closely related in meaning to counterflow. Reversal cold of the limbs and counterflow cold of the limbs are identical in meaning. Counterflow, unlike reversal, is commonly used to denote disruption of the qì dynamic of organs such as the liver, stomach and lung and does not appear in terms denoting loss of consciousness. See reversal pattern; reverse flow.

Etymology

Chin 厥 jué, reverse, adverse; ebb; disrupt.