(medicine) The process of determining which disease, from a set of possible candidates, is causing a patient's symptoms.

(physics, chemistry) The branch of materials science that studies the temperature dependant properties of materials compared with some reference material.

(calculus) A differential equation that involves the partial derivatives of a function of several variables.

(calculus) an equation involving the derivatives of a function

(physics, chemistry) The application of a thermoanalytic technique involving recording any temperature difference between sample and reference materials that are undergoing identical thermal cycles.

(calculus) An equation involving the derivatives of a function of only one independent variable.

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.

(mathematics) In a differentiable manner

(mechanics) A type of differential that allows its output shafts to rotate at different speeds but can limit the maximum difference in angular velocity between the output shafts, allowing greater torque to be applied to the slower-spinning shaft(s) and generally resulting in better traction than older-design differentials.

(mathematics, complex analysis, of a function) That is differentiable and satisfies the Cauchy-Riemann equations on a subset of the complex plane.