Source : Webster's Revised Unabridged Dictionary (1913)

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.