Related Clues:

• Prefix with -hedron
• Numerical prefix
• Prefix with -pod
• Prefix with -gon
• Penta- plus one
• Decimal starter
• Prefix with meter
• Prefix with gram
• Prefix meaning six
• Dodeca- halved
• Prefix with syllabic
• Half dodeca-
• Gon or gram lead-in
• Twice tri-
• Quadri- plus bi-