Wing Beating

A descriptive term for the rhythmic oscillating tremor of the upper extremities as they are outstretched, a characteristic sign of Wilson’s disease, often accompanied by cerebellar ataxia and intention tremor
References in periodicals archive ?
Still only 21, Giles is showing signs of returning to form after a year out with a knee injury, with the diminutive wing beating 10 defenders against Munster.
Some of the bees that stay in the hive will be put on wing beating duty.
The banking regulators haven't a clue as to what the domino effect would be; it is a take on chaos theory and the usual clich of a butterfly's wing beating in the Amazon causing a hurricane in the Caribbean.