Related Clues:

• Doesn't go straight
• Rainbow bands
• S pair
• Rainbows, e.g.
• Punt paths
• Electrical sparks
• They're measured in degrees
• Ship's radio operator, in slang
• Compass doodles
• Fly ball trajectories
• Rainbows, for example
• Parabolas
• Not the most direct routes from point to point
• Flight paths
• Jumps electrodes