( n. )
In inorganic nature, one of those forms in which a species may occur, which differ in minor characteristics of structure, color, purity of composition, etc.
( n. )
In inorganic nature, one of those forms in which a species may occur, which differ in minor characteristics of structure, color, purity of composition, etc.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012