La*cin"i*a (?), n.; pl. L. Laciniae (#). [L., the lappet or flap of a garment.]
1. Bot. (a)
One of the narrow, jagged, irregular pieces or divisions which form a sort of fringe on the borders of the petals of some flowers
A narrow, slender portion of the edge of a monophyllous calyx, or of any irregularly incised leaf
The posterior, inner process of the stipes on the maxillae of insects.
© Webster 1913.