hydraulicmechanism
nounUK /haɪˈdrɒlɪk ˈmɛkənɪzəm/
US /haɪˈdrɔːlɪk ˈmɛkəˌnɪzəm/
A machine that uses water or oil to push and move things.
The excavator's hydraulic mechanism lifted the heavy rock easily.
OTHER MEANINGS
2. The set of parts in a machine that use liquid pressure to create force.
Engineers inspected the hydraulic mechanism for leaks.
3. A way of doing something that relies on liquid power to work.
The bridge uses a hydraulic mechanism to open for boats.
4. The internal arrangement of a hydraulic machine.
He studied the hydraulic mechanism of the crane before repairing it.