Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A pitch thrown with the arm motion of a fastball but traveling at a slower speed so as to cause the batter to swing prematurely.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Alternative form of change-up.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Alteration of change-of-pace.]

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