1. Being one more than thirty
   - 31, xxxi

See also: cardinal

Encyclopedia: Thirty-one

• Photinia arbutifolia
• Photius
• photo
• photo credit
• photo finish
• photo op
• photo opportunity
• photo-offset
• photo-offset printing
• Photoblepharon
• Photoblepharon palpebratus
• photocathode
• photocell
• photochemical
• photochemical exchange
• photochemical reaction
• photochemistry
• photocoagulation
• photocoagulator
• photoconduction
• photoconductive
• photoconductive cell
• photoconductivity
• photocopier
• photocopy