octodecimo /ok-tō-desˈi-mō/

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

A book with sheets so folded

• neonatologies
• neonatology
• neo-Nazi
• neo-Nazism
• neon lamp
• neon lamps
• neon light
• neon lighting
• neon lights
• neonomian
• neonomianism
• neonomianisms
• neonomians
• neons
• neon tetra
• neon tetras
• neopagan
• neopaganise
• neopaganised
• neopaganises
• neopaganising
• neopaganism
• neopaganisms
• neopaganize
• neopaganized