noun
: a chemical (as a photographic chemical, a perfume, or a pharmaceutical) produced and handled in relatively small amounts and usually in a more or less pure state — compare heavy chemical
noun
: a chemical (as a photographic chemical, a perfume, or a pharmaceutical) produced and handled in relatively small amounts and usually in a more or less pure state — compare heavy chemical
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012