{ } a. [ Gr. zygo`n a yoke + &unr_; form. ] (Biol.) Symmetrical bilaterally; -- said of organisms, or parts of organisms, capable of division into two symmetrical halves only in a single plane. [ 1913 Webster ]
{ } a. [ Gr. zygo`n a yoke + &unr_; form. ] (Biol.) Symmetrical bilaterally; -- said of organisms, or parts of organisms, capable of division into two symmetrical halves only in a single plane. [ 1913 Webster ]