Englishfor English speakers
curvature
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noun
(= curve)
the property possessed by the curving of a line or surface
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noun
the rate of change (at a point) of the angle between a curve and a tangent to the curve
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noun
(medicine) a curving or bending; often abnormal
curvature of the spine
change
Verb
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If you change something, you make it different than before.
Ellen changed the sentence so that it was correct.
change
Noun
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A change is when something becomes different.
The building plan required some small changes.
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When you get change for a bill, you get smaller bills or coins that equal the amount of the original bill. For example, if you get change for a $5 bill, you may get five $1 bills or you may get four $1 bills and coins that add up to $1 or you may get some other combination of bills and coins.
Can I get change for this $100 bill please?
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A change is a replacement.
I brought a change of clothes, just in case.