Gadfly

Definition of gadfly:

part of speech: noun

An insect that stings cattle.

Usage examples for gadfly:

• Gemma paused an instant in the doorway, turning to see if the Gadfly too, had noticed the disturbed appearance of the company. "The Gadfly", E. L. Voynich.

• " We're getting away from the main issue," broke in Mr. Squires, the gadfly "Anderson Crow, Detective", George Barr McCutcheon.

• But it came again and again- a persistent mental gadfly "The Dop Doctor", Clotilde Inez Mary Graves.

• Coming back with a lamp, she paused for a moment, thinking that the Gadfly was asleep. "The Gadfly", E. L. Voynich.