1) Coins enclosed in paper 2) Cylindrical packet of coins 3) Roll 4) Roll of coins 
roll.
Rouleau (French for `roll` or `roller`; plural rouleaux) can refer to: ==People== ==Places== ==Things== ...
• (n.) A little roll; a roll of coins put up in paper, or something resembling such a roll.
(roo-lo´) an abnormal group of red blood cells stuck together like a pile of coins.
Rou`leau' noun ; plural French Rouleaux (F. ...; E. ...), English Rouleaus . [ French, a roll, dim. from fr. rôle , formerly also spelt roulle . See Roll .] A little roll; a roll of coins put up in paper, or something resembling such a roll. 
Type: Term Pronunciation: rū-lō′ Definitions: 1. An aggregate of erythrocytes stacked like a pile of coins. Rouleau formation commonly indicates an increase in plasma immunoglobulin.
A rouleau is a piece of material cut on the cross and made into a thin tube which acts as a belt or as piping on a hat or coat.
A group of red blood cells arranged together like a roll of coins, usually only noticed on a slide under a microscope.
[n] - a roll of ribbon 2. [n] - a roll of coins wrapped in paper
noun a roll of coins wrapped in paper