- a mudflow down the side of a volcano, containing pieces of hardened lava, ash, etc.
- the deposit of such a mudflow
Origin of laharJavanese
- A mass of volcanic fragments, often mixed with water, moving rapidly down the side of a volcano.
- The deposit produced by a lahar.
Origin of laharJavanese, lava.
lahar flowing from the crater of Mt. St. Helens
March 19, 1982