Plural of curvature; the plural form of curves or the degrees of bending in multiple objects.
From Latin 'curvatura' (a bending) + plural '-s'. The root 'curvus' means bent or curved in Latin.
Einstein's general relativity explains gravity as 'curvatures' of spacetime itself—the more massive an object, the more it curves space around it, which is why planets orbit stars!
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