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

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