lahar

[ lah-hahr ]

noun

, Geology.

1. a landslide of wet volcanic debris on the side of a volcano.
2. the deposit left by such a landslide.

lahar

/ ˈlɑːhɑː /

noun

1. a landslide of volcanic debris mixed with water down the sides of a volcano, usually precipitated by heavy rainfall

lahar

/ lä′här′ /

1. A wet mass of volcanic fragments flowing rapidly downhill. Lahars usually contain ash, breccia, and boulders mixed with rainwater or with river or lake water displaced by the lava flow associated with the volcano.
2. The deposit produced by such a flowing mass.

Word History and Origins

Origin of lahar¹

1925–30; < Javanese: lahar, lava

Word History and Origins

Origin of lahar¹

C20: from Javanese: lava