octodecimo /ok-tō-desˈi-mō/

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

A book with sheets so folded

• tear off a strip
• tear-off strip
• tear one's hair
• tear one's hair out
• tea room
• tea rooms
• tea rose
• tea roses
• tear pit
• tear pits
• tears
• tearsheet
• tearsheets
• tear shell
• tear shells
• tear smoke
• tear smokes
• tear someone off a strip
• tear-stained
• tear strip
• tear strips
• tear the cat
• tear up
• tear webbing
• teary