from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A generator, especially one for producing direct current.
  • n. An extremely energetic and forceful person: a vice president who was the real dynamo of the corporation.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A dynamo-electric machine.
  • n. An energetic person.

from the GNU version of the Collaborative International Dictionary of English

  • n. A dynamo-electric machine.

from The Century Dictionary and Cyclopedia

  • n. An abbreviation of dynamo-electric machine. See electric.

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

  • n. generator consisting of a coil (the armature) that rotates between the poles of an electromagnet (the field magnet) causing a current to flow in the armature


Short for dynamoelectric machine.
(American Heritage® Dictionary of the English Language, Fourth Edition)
A shortening of dynamo-electric machine. The element dynamo- is ultimately from Ancient Greek δύναμις (dunamis, "power"). (Wiktionary)



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