octodecimo /ok-tō-desˈi-mō/

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

A book with sheets so folded

• turnoffs
• turn of phrase
• turn of speed
• turn of the century
• turn of the year
• turn on
• turn-on
• velvetinesses
• velveting
• velvetings
• velvet-leaf
• velvet-leafs
• velvet-leaves
• velvet-paper
• velvet-papers
• velvet-pile
• velvet-piles
• velvets
• velvet scoter
• velvety
• Ven.
• vena
• vena cava
• vena contracta
• trangles