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Noun: partial derivative  'paa(r)-shul di'ri-vu-tiv
  1. The derivative of a function of two or more variables with respect to a single variable while the other variables are considered to be constant
    "In thermodynamics, partial derivatives are used to express various physical quantities";
    - partial

Derived forms: partial derivatives

Type of: derivative, derived function, differential, differential coefficient, first derivative

Encyclopedia: Partial derivative