Orichalch \Or"i*chalch\, n. [L. orichalcum, Gr. ?; 'o`ros, mountain + chalko`s brass: cf. F. orichalque.] A metallic substance, resembling gold in color, but inferior in value; a mixed metal of the ancients, resembling brass; -- called also {aurichalcum}, {orichalcum}, etc.