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.
Electricity. a device to reduce sparking at contacts where a circuit is opened and closed.
spark arrester

A device designed to keep sparks from escaping, as at a chimney opening or where materials are being welded.

A device used to control or curtail electric sparking at a point where a circuit is made or broken.


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