n.
Pronunciation: ' lä-v ə , ' la-
Function: noun
Etymology: Italian, ultimately from Latin labes fall; akin to Latin labi to slide ― more at SLEEP
Date: 1759
: molten rock that issues from a volcano or from a fissure in the surface of a planet (as earth) or moon also : such rock that has cooled and hardened
– la · va · like \ - ˌ l ī k \ adjective