adj. Self-powered, such as by an electric motor or an internal engine; not requiring external power, such as from a person or a horse.
v. Simple past tense and past participle of power.
The Century Dictionary and Cyclopedia
Having power (of a specified kind or degree): used especially in composition: as, high-powered or low-powered rifles or guns.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. (often used in combination) having or using or propelled by means of power or power of a specified kind
Word Usage
"The train powered on under the bridge, its wheels screeching and roaring, and for one brief moment its lights cleansed the bridge of its clinging shadow."