1. involute(s = adj.all) rolled - especially of petals or leaves in bud; having margins rolled inward;
2. involute(s = adj.all) - (of some shells) closely coiled so that the axis is obscured;
1. Rolled inward from the edges; -- said of leaves in vernation, or of the petals of flowers in æstivation. Gray. [1913 Webster]
2. Turned inward at the margin, as the exterior lip of the Cyprea. [1913 Webster]
A curve traced by the end of a string wound upon another curve, or unwound from it; -- called also
involute, adj. & n.
--adj.
1 involved, intricate.
2 curled spirally.
3 Bot. rolled inwards at the edges.
--n. Geom. the locus of a point fixed on a straight line that rolls without sliding on a curve and is in the plane of that curve (cf. EVOLUTE).
Etymology:
L involutus past part. of involvere: see INVOLVE