单词 | curvature |
释义 | curvature/ˈkəːvətʃə![]() noun [mass noun] 1The fact of being curved or the degree to which something is curved: spinal curvature the curvature of the earth...
1.1 Geometry The degree to which a curve deviates from a straight line, or a curved surface deviates from a plane.This illustrates around the periphery the effects of vignetting - loss of brightness and focus - and curvature of straight lines, typical of camera obscura images generally....
1.2A numerical quantity expressing curvature.A deeper characterization of a helix is that it is the unique curve in 3-space for which the ratio of curvature to torsion is a constant, a result known as Lancret's Theorem....
OriginLate Middle English: via Old French from Latin curvatura, from curvare (see curve). |
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