basalt

About 1.43 uses per million words.

Meaning

1. noun A hard mafic igneous rock of varied mineral content; volcanic in origin, which makes up much of the Earth's oceanic crust.
2. noun A type of unglazed pottery.

Similar words

andesite picrite analcite nephelite leucite melilite wool lava rock trap traprock

Often followed by

and is flows of in or from lava rock

Word family

basaltic basalts