1. A lateral, surficial stream of molten lava issuing from a volcanic cone or from a fissure. 2. The solidified mass of rock formed when a lava stream congeals.
Related terms:
1. A lateral, surficial stream of molten lava issuing from a volcanic cone or from a fissure. 2. The solidified mass of rock formed when a lava stream congeals.
Related terms: