Complementarity

Complementarity may refer to:

Physical sciences and mathematics

 * Complementarity (molecular biology), a property of nucleic acid molecules in molecular biology
 * Complementarity (physics), the principle that objects have complementary properties which cannot all be observed or measured simultaneously
 * Complementarity theory, a type of mathematical optimization problem
 * Quark–lepton complementarity, a possible fundamental symmetry between quarks and leptons

Society and law

 * Complementarianism, a theological view that men and women have different but complementary roles
 * Complementary good, a good for which demand is increased when the price of another good is decreased
 * An element of interpersonal compatibility in social psychology
 * The principle that the International Criminal Court is a court of last resort