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Webster 1913 Edition
Involuted
1.
(Bot.)
Rolled inward from the edges; – said of leaves in vernation, or of the petals of flowers in æstivation.
Gray.
2.
(Zool.)
(a)
Turned inward at the margin, as the exterior lip of the Cyprea.
(b)
Rolled inward spirally.
Webster 1828 Edition
Involuted
IN'VOLUTED
,Adj.
In botany, rolled spirally inwards. Involuted foliation or venation, is when the leaves within the bud have their edges rolled spirally inwards on both sides towards the upper surface.