fly ball

noun Baseball.

a ball that is batted up into the air.
Also called fly.
Compare ground ball.

Origin of fly ball

An Americanism dating back to 1860–65 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for fly ball

  • The fly-ball governor replaced the throttle-valve which was at first used by Watt to regulate the speed of his engines.

    The Story of Great Inventions|Elmer Ellsworth Burns
  • Engines of the slide-valve type are usually provided either with a fly-ball throttling governor, or a shaft governor.

    Steam Engines|Anonymous