open-pit
[ oh-puh n-pit ]
/ ˈoʊ pənˌpɪt /
adjective Mining.
noting or pertaining to a type of surface mining in which massive, usually metallic mineral deposits are removed by cutting benches in the walls of a broad, deep funnel-shaped excavation.
Origin of open-pit
First recorded in 1910–15
Words nearby open-pit
Example sentences from the Web for open-pit
The cableway is so economical in its working that it has greatly advanced the process of "open-pit" mining.
The Romance of Modern Mechanism |Archibald Williams