corrugation.

A ridge, fold, or repeated grooved pattern formed in a surface.

Use it for

Words that belong together

• metal corrugation
• shallow corrugations

On the page

Each shallow corrugation caught a thin line of light.

Usage notes

Primary category: sensory / description. Forms: Singular corrugation; plural corrugations. 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: description. Commonness: moderately common.