octodecimo /ok-tō-desˈi-mō/

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

A book with sheets so folded

• acquisitive awards
• acquisitively
• acquisitiveness
• acquisitivenesses
• acquisitive prize
• acquist
• acquists
• acquit
• acquite
• acquites
• acquiting
• acquitment
• acquits
• acquittal
• acquittals
• acquittance
• acquittances
• acquitted
• acquitting
• acrasia
• acrasias
• acratic
• acrawl
• acre
• ACRE