Definition of basalts:
(n) :
(mineralogy) A hard mafic igneous rock of varied mineral content; volcanic in origin, which makes up much of the Earth's oceanic crust.
(n) :
A type of unglazed pottery.
(n) :
A home rule municipality of Eagle County and Pitkin County, Colorado.
(n) :
A city and town in Bingham County, Idaho.
(n) :
A locality in the Shire of Hepburn, central western Victoria, Australia.