antigenic determinant, determinant, epitope -- (the site on the surface of an antigen molecule to which an antibody attaches itself)
determinant -- (a square matrix used to solve simultaneous equations)
Overview of adj determinant
The adj determinant has 1 sense
deciding, determinant, determinative, determining -- (having the power or quality of deciding; "the crucial experiment"; "cast the deciding vote"; "the determinative (or determinant) battle")