Related Clues:

• Rainbow's curve
• Bottle rocket path
• Etna's outflow
• Trajectory of a volleyball serve
• Story line's path
• Curved bit
• Volcano stuff
• Flower made of rock?
• Bridge between two electrodes
• Lawn dart path
• Etna's melted rock
• Hot flow
• Basketball's three-point line, e.g.
• Slo-pitch path
• Volcanic product