# differential

^{1}dif·fer·en·tial

*adjective*\ËŒdi-fÉ™-Ëˆren(t)-shÉ™l\

: relating to or based on a difference : treating some people or groups differently from others

## Full Definition of *DIFFERENTIAL*

*a*

**:**Â of, relating to, or constituting a difference

**:**Â distinguishing

*b*

**:**Â making a distinction between individuals or classes

*c*

**:**Â based on or resulting from a differential

*d*

**:**Â functioning or proceeding differently or at a different rate

**:**Â being, relating to, or involving a differential or differentiation

*a*

**:**Â relating to quantitative differences

*b*

**:**Â producing effects by reason of quantitative differences

**dif·fer·en·tial·ly**\-Ëˆren(t)-shÉ™-lÄ“\

*adverb*

## Examples of *DIFFERENTIAL*

- <did away with
*differential*pay scales for men and women doing the same work>

## First Known Use of *DIFFERENTIAL*

## Related to *DIFFERENTIAL*

- Antonyms
- nondiscriminatory

^{2}differential

*noun*

: a difference between people or things

: a gear or an arrangement of gears in a vehicle that allows one wheel to turn faster than another when the vehicle is going around a curve

## Full Definition of *DIFFERENTIAL*

*a*

**:**Â the product of the derivative of a function of one variable by the increment of the independent variable

*b*

**:**Â 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

**:**Â a difference between comparable individuals or classes <a price

*differential*>;

*also*

**:**Â the amount of such a difference

*a*

**:**Â 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*

**:**Â a case covering such an assembly

## First Known Use of *DIFFERENTIAL*

## Other Mechanical Engineering Terms

## Rhymes with *DIFFERENTIAL*

## dif·fer·en·tial

*adjective*\ËŒdif-É™-Ëˆren-chÉ™l\

*(Medical Dictionary)*

## Medical Definition of *DIFFERENTIAL *

**:**of, relating to, or constituting a difference <

*differential*birth rates in different economic levels>

**:**making a distinction between individuals or classes <

*differential*cell counts> <

*differential*staining>

**dif·fer·en·tial·ly**\-Ëˆrench-(É™-)lÄ“\

*adverb*

## differential

*noun*

*(Concise Encyclopedia)*

In calculus, an expression based on the derivative of a function, useful for approximating certain values of the function. The differential of an independent variable *x*, written *x*, is an infinitesimal change in its value. The corresponding differential of its dependent variable *y* is given by *y*Â =Â *f*(*x*Â +Â *x*)Â Â *f*(*x*). Because the derivative of the function *f*(*x*), *f*(*x*), is equal to the ratio as *x* approaches zero (*see* limit), for small values of *x*, *y*Â Â *f*(*x*)*x*. This formula often enables a quick and fairly accurate approximation to be made for what otherwise would be a tedious calculation.

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