Related Clues:

• Semicircles
• Planetary paths
• Pinball paths
• Circle parts
• Rainbows
• Parentheses, e.g.
• Pendulum paths
• Parentheses, essentially
• Bows
• Parabolic paths
• Circle segments
• Radioman's nickname
• Geometric measurements
• Rainbow shapes
• Current jumps, e.g.