octodecimo /ok-tō-desˈi-mō/

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

A book with sheets so folded

• portraited
• portrait-galleries
• portrait-gallery
• portraiting
• portrait-painter
• portrait-painters
• portrait-painting
• portraits
• portraiture
• portraitures
• portray
• portrayal
• portrayals
• portrayed
• portrayer
• portrayers
• portraying
• portrays
• portreeve
• portreeves
• portress
• portresses
• ports
• Port Salut
• ports of call