Related Clues:

• Circle segments
• They often have twists
• Geometric measurements
• Rainbow shapes
• Current jumps, e.g.
• Doesn't go straight
• They may be brewing
• Rainbow bands
• S pair
• Rainbows, e.g.
• Punt paths
• Electrical sparks
• They're measured in degrees
• Compass doodles
• Fly ball trajectories