What is the meaning of Lahar?

A volcanic mudflow.

bramble, blackberry bush

lahar (volcanic mudflow)

lava

lahar (volcanic mudflow)

romanization of ꦭꦲꦂ

lava

lahar (volcanic mudflow)

lahar

romanization of 𒇇 (laḫar)

lahar (volcanic mudflow)

alternative form of lahad

alternative form of lahad

Source: wiktionary.org