Medical Definition of stinger
1: a sharp organ (as of a wasp, bee, scorpion, or stingray) that is usually connected with a poison gland or otherwise adapted to wound by piercing and injecting a poison
2: a usually sports-related injury of the brachial plexus marked by a painful burning sensation that radiates from the neck down the arm and is often accompanied by weakness or numbness of the affected area—called also burner
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