1. A book consisting of sheets each of which is folded into twelve leaves; hence, indicating, more or less definitely, a size of a book
   - duodecimo

Derived forms: twelvemos

• renegue on
• renew
• renewability
• renewable
• renewable energy
• renewable resource
• renewal
• renewed
• renewing
• reniform
• reniform leaf
• renin
• renitency
• renitent
• renminbi
• rennet
• rennin
• Reno
• Renoir
• renormalise
• renormalization
• renormalize
• renounce
• renouncement
• renovate