rouleau /roo-lōˈ/

1. A roll or coil, often of ribbon
2. A cylindrical pile or column of coins, blood corpuscles, or other discs

• airlocks
• airmail
• airmailed
• airmailing
• airmails
• airman
• airmanship
• airmanships
• air-marshal
• air mass
• air masses
• air-mechanic
• air-mechanics
• airmen
• air mile
• air miles
• air-minded
• air miss
• airn
• air-officer
• air-officers
• air-passage
• air-passages
• air-piracies
• air-piracy