definiens: shall mean, whether in nucleic acid or protein fo rm, individually and collectively : ( i ) an antibody or antibody fragment ( including but not limited to antibody fragments such as Fv, Fab, F(ab’)2, single chain antibody, antibody conjugate bound to a toxin or bound to a label, or any other moiety ) that, in each case, is based on [ * * * ] and/or includes [ * * * ] that in all cases [ * * * ] and ( ii ) any antibody or antibody fragment that, in each case, h as been derived ( either physically, intellectually or by reverse engineering, in one ( 1 ) or more steps ) from an antibody or antibody fragment referred to in Section 1.26(i ) hereof ( including any antibody resu lting from Antibody Affinity Optimization of a HuCA L Antibody )