cupful definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
pl. cupfuls as much as a cup will hold: a standard measuring cup holds eight ounces (237 milliliters) or 16 tablespoons
cupful definition by American Heritage Dictionary
noun pl. cup·fuls
- The amount that a cup can hold.
- A measure of capacity equal to one cup.