Protuberances

The hiker's backpack was causing protuberances on his shoulders from the weight.

The athlete had several protuberances on his leg due to a recent injury.

The mole had protuberances on its nose that helped it to sense its surroundings.

The car had protuberances on the hood that helped to cool the engine.

The protuberances on the sun's surface can cause disruptions to our technology on Earth.

Solar storms can cause protuberances on the sun's surface.

The protuberances on the sun can release massive amounts of energy.