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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The first known use of Spanish fly was circa 1634

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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

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