differential

²differential

noun

Definition of DIFFERENTIAL

1

a : the product of the derivative of a function of one variable by the increment of the independent variable b : a sum of products in which each product consists of a partial derivative of a given function of several variables multiplied by the corresponding increment and which contains as many products as there are independent variables in the function

2

: a difference between comparable individuals or classes <a price differential>; also : the amount of such a difference

3

a : a drivetrain gear assembly connecting two collinear shafts or axles (as those of the rear wheels of an automobile) and permitting one shaft to revolve faster than the other b : a case covering such an assembly

First Known Use of DIFFERENTIAL

1704

Other Mechanical Engineering Terms

centrifuge, flange, lathe, linchpin, pinion, plenum, ratchet, traction

Rhymes with DIFFERENTIAL

inessential, influential, nonessential