octodecimo /ok-tō-desˈi-mō/

1. Having eighteen leaves to the sheet
2. Contracted 18mo, often read eighteenmo

A book with sheets so folded

• bravos
• bravura
• bravuras
• braw
• brawer
• brawest
• brawl
• brawled
• brawler
• brawlers
• brawling
• brawlings
• brawls
• brawly
• brawn
• brawned
• brawnier
• brawniest
• brawniness
• brawninesses
• brawns
• brawny
• braws
• braxies
• braxy