Related Clues:

• Parts of forearms
• Two make a diameter
• Center-to-rim lines
• Humeri neighbors
• Circle measures
• Arms runners?
• Pie cuts, geometrically
• Spokes, say
• They help form joints
• Wrist-to-elbow bones
• Radii companions
• Bodily pair
• Bones in forearms
• Pie cuts, basically
• Pie slice edges, geometrically