1. the amount that a teacup can hold

Examples

• Add a teacupful of milk to the mixture.
• The recipe calls for a teacupful of sugar.
• She drank only a teacupful of the bitter medicine.
• Pour a teacupful of water into the bowl.
• The small child could barely finish a teacupful of soup.
• Measure out a teacupful of flour for the cake batter.