from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A usually compact, portable device that converts supply current to direct or alternating current as required by specific equipment.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A portable power supply.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a device for converting a power supply to a voltage required by particular equipment


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