incurvature

Noun

1.

incurvature - a shape that curves or bends inward Synonyms: concave shape, concavity, incurvation

bowl, concave shape, concavity, corner, cup, depression, dome, fossa, impression, imprint, incurvation, indentation, indenture, niche, pit, pocket, recess, recession, scoop, solid, trough