- any form of prime mover or motor that is operated by the kinetic energy, pressure, or weight of water, especially a small turbine or waterwheel fitted to a pipe supplying water.
Origin of water motor
First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for water motor
With a soft roar the water-motor exploded into action, sending the shell far into the sky.
You can own a water-motor like the one shown in Fig. 61, because its construction requires nothing but easily obtained materials.
The Case of this water-motor is made of an empty varnish can—preferably one of gallon capacity.
Meantime the turbine grew steadily in favor as a water-motor, arriving at last at high efficiency.Inventors at Work
For continuous work, as we cannot always be turning the wheel, a small steam-engine or water-motor must be employed.How to Make Electrical Machines
R. A. R. Bennett