(semantics, logic, taxonomy) A distinguishing feature which marks a species off from other members of the same genus.

plural of differentia

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.

plural of partial differential equation

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.

(calculus, not comparable) Having a derivative, said of a function whose domain and codomain are manifolds.

plural of ordinary differential equation

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

a thermal analysis technique in which a tiny sample pan is heated together with an empty reference pan and the difference in heat flow between the two measured as a function of temperature.