Wiktionary
adv. Using hydraulics.
WordNet
adv. in a hydraulic manner; "the block is then tested hydraulically to its full design test pressure on each stream separately" [syn: hydraulicly]
Usage examples of "hydraulically".
Passing Mach 2, the pilot toggled a lever that hydraulically lifted an opaque metal screen to cover the windshield and protect it.
But the pressure of her fingers, holding a hydraulically compartmented artificial hand and transmitting over the airwaves an electric signal to change pressures of the hydraulic compartments of the handie, began to feel like that of a skeleton wearing rubber gloves.
They use a proprioceptor system which enables the brain to know the exact, three-dimensional position of a limb with respect to the body at any given time, and movement is controlled hydraulically by the increase or reduction of internal fluid.