curvature.

The bending of a line or surface away from a straight or flat form, or a measure of that bending.

Use it for

Words that belong together

• curvature of a surface
• gradual curvature

On the page

The curvature of the surface changed how the reflected light reached the doorway.

A gradual curvature carried the road out of sight beyond the low hill.

Usage notes

Primary category: setting / description. Forms: Usually uncountable. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: spatial orientation, setting description, material description, contrast. Disciplines: descriptive writing, physical setting, spatial analysis. Commonness: moderately common.