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Noun: spark arrester  spaa(r)k u're-stu(r)
  1. Electrical device to reduce sparking when electrical contacts are opened or closed
     
  2. A wire net to stop sparks from an open fireplace or smokestack
    - sparker

Derived forms: spark arresters

Type of: electrical device, mesh, meshing, meshwork, net, network

Encyclopedia: Spark arrester