Spanish fly

noun

Definition of Spanish fly

1 : a green blister beetle (Lytta vesicatoria) of southern Europe

First Known Use of Spanish fly

circa 1634, in the meaning defined at sense 1

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More Definitions for Spanish fly

Spanish fly

noun

Medical Definition of Spanish fly

1 : a green blister beetle (Lytta vesicatoria of the family Meloidae) of southern Europe that is the source of cantharides