Anything that differentiates, or causes differentiation (in any sense); a distinguishing feature.

plural of differential

(mathematics) In a differentiable manner

(obsolete, mathematics) A binary invariant

Associated with, or leading to differentiation

growth medium that allows two or more organisms to be distinguished from one another by some parameter, such as growth vs. no-growth, distinguishing colors, distinguishing morphologies, etc.

A bifurcation of the meaning along with time into two separate meanings of two separate resulting expressions. / A diachronic differentiation or change in meaning.

plural of differential equation

(geometry, mathematical analysis) The study of geometry, especially geometric structures on differentiable manifolds, using techniques from calculus, linear algebra and multilinear algebra.

(mathematics) Field dealing with differentiable functions on differentiable manifolds.