noun
: a crack in the earth's crust filled with minerals deposited from aqueous solution including sometimes such adjacent rock as has been sufficiently mineralized to be mined as ore
noun
: a crack in the earth's crust filled with minerals deposited from aqueous solution including sometimes such adjacent rock as has been sufficiently mineralized to be mined as ore
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012