constituting a difference
; distinguishing; distinctive: a differential feature.
exhibiting or depending upon a difference
4. Physics, Machinery.
pertaining to or involving the difference
of two or more motions, forces, etc.
Mathematics. pertaining to or involving a derivative or derivatives.
a difference or the amount of difference, as in rate, cost, quantity, degree, or quality, between things that are comparable.
7. Also called differential gear. Machinery.
an epicyclic train of gears designed to permit two or more shafts to rotate at different speeds, as a set
of gears in an automobile permitting the rear wheels to be driven at different speeds when the car is turning.
8. Mathematics. a.
a function of two variables that is obtained from a given function, y = f
), and that expresses the approximate increment in the given function as the derivative of the function times the increment in the independent variable
, written as dy = f′
any generalization of this function to higher dimensions.
Physics. the quantitative difference between two or more forces, motions, etc.: a pressure differential.
Origin: 1640–50; Related forms
< Medieval Latin differentiālis,
equivalent to differenti
+ ālis -al