high-voltage

[hahy-vohl-tij]
adjective
1.
operating on or powered by high voltage: a high-voltage generator.
2.
Informal. dynamic; powerful: a high-voltage theatrical entrepreneur.

Origin:
1965–70

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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WordNet
high-voltage

adjective
1. operating on or powered by a high voltage; "a high-voltage generator" 
2. vigorously energetic or forceful; "a high-octane sales manager"; "a high-octane marketing plan"; "high-powered executives"; "a high-voltage theatrical entrepreneur" [syn: high-octane
WordNet® 3.0, © 2006 by Princeton University.
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Example sentences
For example, high-voltage lighting along the fence would pose problems for bats.
To accommodate green energy, the grid needs not only more storage but more
  high-voltage power lines.
The high-voltage third rail that runs next to a set of train tracks is, of
  course, something to be avoided.
It is also used as a semiconductor in high-voltage applications.
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