Constitutive may refer to:
* In physics, a
constitutive equation
In physics and engineering, a constitutive equation or constitutive relation is a relation between two physical quantities (especially kinetic quantities as related to kinematic quantities) that is specific to a material or substance, and app ...
is a relation between two physical quantities
* In
ecology
Ecology () is the study of the relationships between living organisms, including humans, and their physical environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere level. Ecology overl ...
, a constitutive defense is one that is always active, as opposed to an
inducible defense
*
Constitutive theory of statehood
* In genetics, a constitutive gene is always expressed – see
constitutive expression
{{Disambiguation