1) A hard, black, often glassy, volcanic rock. It was produced by the partial melting of the Earth's mantle.
2) A stone-like, hard black unglazed pottery.
1) The statue was built on a basalt tower.
2) That vase cannot break, it's made of basalt.
by Jafje June 14, 2007
joke form of the word "assult" for the geologically inclined
"stop basalting me park ranger toby delcompass"
by izerin2103 November 12, 2006
A type of igneous rock usually associated with table making.
Hey is that counter-top made of the mineral basalt?
by L-dawg January 25, 2003