bi·o·sim·i·lar 
(bī′ō-sĭmə-lər)
(bī′ō-sĭmə-lər)adj.
Highly similar in function and effect to an existing biological product, especially to a biologic that has already been clinically tested and approved for use.
n.
A biological product that is biosimilar to an existing product, especially to a biologic.