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1. A determining or causal element or factor
   "education is an important determinant of one's outlook on life"
   - determiner, determinative, determining factor, causal factor
    
2. The site on the surface of an antigen molecule to which an antibody attaches itself
   - antigenic determinant, epitope
    
3. (mathematics) a scalar quantity derived from a matrix giving the volume scaling of the matrix

1. Having the power or quality of deciding
   "the determinative (or determinant) battle"
   - deciding, determinative, determining

Derived forms: determinants

See also: decisive, determine

Type of: cognitive factor, site, situation, square matrix

Part of: antigen

Encyclopedia: Determinant