( a. )
Of, pertaining to, or derived from, copper; containing copper; -- said of those compounds of copper in which this element is present in its lowest proportion.
( a. )
Of, pertaining to, or derived from, copper; containing copper; -- said of those compounds of copper in which this element is present in its lowest proportion.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012