impurity (ɪmˈpjʊərɪtɪ) ![]() | |
| —n , pl -ties | |
| 1. | the quality of being impure |
| 2. | an impure thing, constituent, or element: impurities in the water |
| 3. | electronics acceptor See also donor a small quantity of an element added to a pure semiconductor crystal to control its electrical conductivity |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a fool or simpleton; ninny. |