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Meaning of spark arrester

spark' arrest"er

Pronunciation: [key]
  1. a device, consisting of wire netting or other material, used to stop or deflect sparks thrown from an open fireplace, a smokestack, or the like.
  2. a device to reduce sparking at contacts where a circuit is opened and closed.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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