jpdb beta

mobility

ability to take action; ability to take initiatives; energy; dynamism; drive

motive power; driving force

source of power

nuclear power reactor

energy; vitality

impetus

motor coach; motor car

braking force; braking power

power dive

multiple-unit system

efficient cause (one of Aristotle's four fundamental types of answer to the question "why?")

energy resource; source of energy

dynamometer

power cultivator

power failure

power cultivator

power cultivator