1) Curving or curling inward 
• (a.) Rolled inward from the edges; -- said of leaves in vernation, or of the petals of flowers in aestivation. • (a.) Rolled inward spirally. • (a.) Turned inward at the margin, as the exterior lip of the Cyprea.
curving or curling inward. · having an involved or complex nature. · having resumed its normal size, shape, or condition.