hydraulic motor vs actuator

hydraulic motor and actuator both are nouns.

Word	Noun	Adjective	Verb	Adverb
hydraulic motor	Yes	No	No	No
actuator	Yes	No	No	No

As nouns, actuator is a hypernym of hydraulic motor; that is, actuator is a word with a broader meaning than hydraulic motor:

hydraulic motor: A hydraulic motor is a mechanical actuator that converts hydraulic pressure and flow into torque and angular displacement (rotation).
actuator: a mechanism that puts something into automatic action

Other hypernyms of hydraulic motor include motor.

hydraulic motor (noun)	actuator (noun)
A hydraulic motor is a mechanical actuator that converts hydraulic pressure and flow into torque and angular displacement (rotation).	a mechanism that puts something into automatic action