1. hot melted rock that flows from a volcano
2. rock formed when molten volcanic material cools and hardens

Examples

• The lava flowed slowly down the mountainside.
• Scientists studied the temperature of the lava as it erupted.
• The village was destroyed by a river of lava.
• Ancient lava flows created the island’s landscape.
• The hardened lava formed interesting rock formations.
• Red-hot lava lit up the night sky.
• Tourists watched the lava from a safe distance.