Definitions for spark arrester
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Princeton's WordNet
spark arrester(noun)
electrical device to reduce sparking when electrical contacts are opened or closed
spark arrester, sparker(noun)
a wire net to stop sparks from an open fireplace or smokestack
The Standard Electrical Dictionary
Spark Arrester
A screen of wire netting fitting around the carbons of an arc lamp above the globe to prevent the escape of sparks from the carbons.
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