ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷ noun
( -s )
: a mining in which sections of a large ore body are undercut by working places and then permitted to cave in, the ore so crushed being recovered through drifts
ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷ noun
( -s )
: a mining in which sections of a large ore body are undercut by working places and then permitted to cave in, the ore so crushed being recovered through drifts
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012