1. a roll of coins wrapped in paper
2. a small roll or cylinder of something

Examples

• The bank teller handed me a rouleau of quarters.
• She exchanged her loose change for rouleaux of pennies.
• The cashier needed a rouleau of dimes for the register.
• He collected rouleaux of silver dollars.
• The fabric was arranged in neat rouleaux on the shelf.
• She rolled the clay into small rouleaux for her pottery project.