From WordNet (r) 3.0 (2006) [wn]:
replica
n 1: copy that is not the original; something that has been
copied [syn: replica, replication, reproduction]
From The Collaborative International Dictionary of English v.0.48 [gcide]: Replica \Rep"li*ca\ (r?p"l?-k?), n. [It. See Reply, v. & n.] [1913 Webster] 1. (Fine Arts) A copy of a work of art, as of a picture or statue, made by the maker of the original. [1913 Webster] 2. (Mus.) Repetition. [1913 Webster]