Definition of flanger
1 : one that makes or repairs flanges: such as a : a worker who flanges the tops of glass flasks b : a worker who prepares or adjusts flanges on metal plates (as in shipbuilding) c : a worker who forms the flanges of glass tubes used for hypodermic syringe cylinders d : a worker who shapes hat brims by pressing e : a tool or machine for forming flanges
2 : a scraper for clearing ice and snow from the inside of railroad rails to provide clearance for the wheel flanges
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