Related Clues:

• Beginning of eight words?
• Geometry prefix
• Word form for ''eight''
• Twice tetra
• Prefix for -gon
• Eight Prefix:
• Tetra- times two
• Prefix with ''gon'' or ''hedron''
• Prefix meaning "eight"
• Prefix for 'eight'
• Tetra- doubled
• Quadri- times two
• Prefix with -valent
• Bi- cubed
• Eight, as a prefix