( n. )
A substance of variable composition, but resembling a soft, dark-colored metal, used in the bearings of machines for obviating friction, and as a substitute for lubricants.
( n. )
A substance of variable composition, but resembling a soft, dark-colored metal, used in the bearings of machines for obviating friction, and as a substitute for lubricants.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012