Definition of arc welder
1 : a machine that creates arcs for arc welding For instance, you can use an arc welder and welding rod to build up a worn surface, such as a crankshaft journal. — Richard Finch, Welder's Handbook, 2007
2 : a person whose job is arc welding Following recovery the patient was anxious to return to work as an arc welder. — Leslie A. Geddes, Medical Device Accidents and Illustrative Cases, 2002
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First Known Use of arc welder
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