alternating motion

A combination which redresses an alternating motion into an analogous, unidirectional motion.

The Haliplidae are a family of water beetles who swim using an alternating motion of the legs.

Compared to vertically vibrating devices the side alternating motion results in very low acceleration acting on the centre of gravity of the upper body and the head.

Reciprocal motion of a joint - Alternating motion in opposing directions, such as the elbow alternating between flexion and extension.

This side alternating motion is supposed to mimic human gait in order to utilize nearly physiological motion patterns close to the side alternating human gait.

Alternating motions, he first dragged his long, wet tongue up to her love bud and licked intensely for a few moments before bringing his licks back to her opening.

The Japanese bullhead shark is a slow-moving predator that feeds on crustaceans, molluscs, small fishes, and sea urchins, often hunting for them while "walking" along the sea bottom with alternating motions of its pectoral and pelvic fins.

WHILE hundreds of awed eyes watched the steel bridge buckle, saw it swing with a pendulum sway that increased with every alternating motion, they were treated to a sight that made the fate of the bridge seem trifling.

Some uncommon, intricate horological devices found in the IMP instrument include cardioid-shaped cam discs, a cone-shaped cam cylinder with a cardioid cross-section and "mechanical rectifiers" which transformed an alternating motion into an analogous, but unidirectional motion (see illustrations).

I was flying quite low, at about a hundred feet, and for the first time I felt a sensation often described by the explorers but which I had never noticed from the height of the Station: the alternating motion of the gleaming waves was not at all like the undulation of the sea or the billowing of clouds.