Morphologicallydifferent -ial
differential (comparative moredifferential ,superlative mostdifferential )
Of or pertaining to adifference .differential characteristics
I saved disk space by takingdifferential backups , which only stored the data that had changed. 1856 John Lothrop Motley ,The Rise of the Dutch Republic: A History , volume 1:[Caspar Schetz, Baron of Grobbendonck] was regularly in the pay of Sir Thomas Gresham, to whom he produceddifferential favours, and by whose government he was rewarded by gold chains and presents of hard cash, bestowed as secretly as the equivalent was conveyed adroitly.
Dependent on, ormaking a difference;distinctive .Having differences inspeed ordirection ofmotion . ( mathematics ) differentiation or thedifferential calculus .dependent on, distinctive
having differences in speed or direction
relating to differentiation or differential calculus
differential (plural differentials
Thedifferential gear in anautomobile , etc. Aqualitative orquantitative difference betweensimilar orcomparable things. One of twocoils ofconducting wire so related to one another or to amagnet orarmature common to both, that one coil producespolar action contrary to that of the other. A form ofconductor used for dividing and distributing thecurrent to a series of electric lamps so as to maintain equal action in all.[ 1] ( calculus ) infinitesimal change in avariable , now only used as aheuristic aid except innonstandard analysis but considered rigorous until the 20th century; afluxion inNewtonian calculus , now usually written inLeibniz's notation asd x {\displaystyle \operatorname {d} \!x} ( calculus , of aunivariate differentiable function f ( x ) {\displaystyle f(x)} ) linear approximation off {\displaystyle f} x {\displaystyle x} Δ x {\displaystyle \Delta x} d x {\displaystyle \operatorname {d} \!x} differential off {\displaystyle f} d f ( x , Δ x ) {\displaystyle \operatorname {d} \!f(x,\Delta x)} d f ( x ) {\displaystyle \operatorname {d} \!f(x)} d f {\displaystyle \operatorname {d} \!f} Any of severalgeneralizations of this concept to functions of several variables or to higherorders : thepartial differential ,total differential ,Gateaux differential ,etc. ( multivariable calculus ) Jacobian matrix of a function of several variables.( differential geometry , of asmooth map ϕ {\displaystyle \phi } smooth manifolds ) pushforward ortotal derivative ofϕ {\displaystyle \phi } tangent space at a pointx {\displaystyle x} ϕ {\displaystyle \phi } ϕ ( x ) {\displaystyle \phi (x)} ϕ {\displaystyle \phi } x {\displaystyle x} d ϕ x {\displaystyle \operatorname {d} \!\phi _{x}} ( mathematics ) generalizations of the concept(s) above: e.g. theKähler differential in the setting ofschemes , thequadratic differential in the theory ofRiemann surfaces , etc.difference between similar or comparable things
differential c
( mechanics ) differential gear ( mathematics ) ( mathematics ) differential operator 
