1. bursting forth or exploding violently, especially of a volcano releasing lava, ash, or gas
2. breaking out suddenly and violently, as in conflict or emotion
3. appearing suddenly on the skin, as a rash or spots
Usage: medical

Examples

• The volcano has been erupting for three days straight.
• Smoke and ash were erupting from the mountain peak.
• Violence was erupting in the streets after the announcement.
• The crowd was erupting in cheers when the team scored.
• Red spots were erupting all over his arms.
• The argument was erupting into a full-scale fight.
• Laughter kept erupting from the children’s room.