Definitions

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

  • adjective Of or relating to elementary particles with energies exceeding hundreds of thousands of electron volts.
  • adjective Yielding a large amount of energy upon undergoing chemical reaction.
  • adjective Vigorous; dynamic.

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

  • adjective physics of an elementary particle, or the equivalent electromagnetic radiation, having an energy greater than a hundred thousand electron volts
  • adjective chemistry producing a large amount of energy (when reacting)
  • adjective vigorous, energetic or dynamic

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

  • adjective vigorously energetic or forceful
  • adjective of or relating to elementary particles having energies of hundreds of thousands of electron volts
  • adjective providing a relatively large amount of energy upon undergoing a chemical reaction

Etymologies

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Examples

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