noun
: an ammoniated ruthenium chloride obtained as a brownish red powder and used as a microscopic stain and as a test especially for pectin and gums
noun
: an ammoniated ruthenium chloride obtained as a brownish red powder and used as a microscopic stain and as a test especially for pectin and gums
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012