单词 | differential |
释义 | differential (once / 4546 pages) 1nadj 2n Things that show a difference or act in different ways can be described as differential. You and your sister may get differential benefits from eating a vegetarian diet. You're most likely to come across the adjective differential in scholarly or scientific writing — it's really just a more formal way to say "different" or "differing." Sociological studies or articles often describe differential circumstances or outcomes, like the differential effects on various children of being raised with one parent. The Latin differentia is at the root of differential — it means "diversity or difference," and it comes from differre, "to set apart." WORD FAMILYdifferential: differentially, differentials+/differ: differed, different, differing, differs/difference: differences, differential, differentiate/different: difference, differently, indifferent/differentiate: dedifferentiate, differentiable, differentiated, differentiates, differentiating, differentiation, differentiator/differentiated: dedifferentiated, undifferentiated/differentiation: dedifferentiation, differentiations/indifference: indifferences/indifferent: indifference, indifferenter, indifferently USAGE EXAMPLESThat said, the South of England as a whole continued to see "slightly stronger price growth" than the North of England, though the differential narrowed. BBC(Dec 29, 2016) While the euro is unusually weak against the resurgent dollar, the pound is far weaker, boosting price differentials on most goods. Seattle Times(Dec 21, 2016) “There clearly is a cost differential, and more and more kinds of activity are becoming feasible there,” he said. Los Angeles Times(Dec 19, 2016) 1 1n a quality that differentiates between similar things Hyper difference the quality of being unlike or dissimilar 2n the result of mathematical differentiation; the instantaneous change of one quantity relative to another; df(x)/dx Syn|Hypo|Hyper derivative, derived function, differential coefficient, first derivative curvature the rate of change (at a point) of the angle between a curve and a tangent to the curve partial, partial derivativethe derivative of a function of two or more variables with respect to a single variable while the other variables are considered to be constant calculation, computation, figuring, reckoning problem solving that involves numbers or quantities 3adj relating to or showing a difference differential treatment 4adj involving or containing one or more derivatives 2differential equation n a bevel gear that permits rotation of two shafts at different speeds; used on the rear axle of automobiles to allow wheels to rotate at different speeds on curves Syn|Hyper differential gear bevel gear, pinion and crown wheel, pinion and ring gear gears that mesh at an angle |
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