incurvation

1. (countable, uncountable)The act of acquiring or being given a curved form; an instance of curving or bending.

2. (countable, uncountable)The state of being curved or bent; any curved shape or formation; curvature; a curve; a bend.

   the action of creating a curved shape

3. The state of being curved or bent; any curved shape or formation; curvature; a curve; a bend.

   (countable, uncountable)A curving inwards; the condition of being curved inwards.

4. (countable, obsolete, uncountable)Bowing in reverence or worship.

regular