Gadfly Definition

gădflī
gadflies
noun
gadflies
A persistent irritating critic; a nuisance.
American Heritage
A person who annoys others, esp. by rousing them from complacency.
Webster's New World
One that acts as a provocative stimulus; a goad.
American Heritage
Any of several large flies, as the horsefly, that bite livestock.
Webster's New World

Any dipterous insect of the family Oestridae, commonly known as botflies.

Wiktionary

Other Word Forms of Gadfly

Noun

Singular:
gadfly
Plural:
gadflies

Origin of Gadfly

  • gad fly

    From American Heritage Dictionary of the English Language, 5th Edition

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gadfly