Related Clues:

• Plane heading?
• Cycle's front-end?
• Denotes three
• Prefix for cycle
• Prefix meaning ''three''
• Quarter of dodeca-
• Annual opener
• Prefix for pod
• State or sect starter
• Prefix for corn or angle
• Word form for ''three''
• Sesqui- times two
• Color or corn starter
• Not just bi
• Angle start