Lappet \Lap"pet\, n. [Dim. of lap a fold.]
A small decorative fold or flap, esp, of lace or muslin, in a
garment or headdress. --Swift.
{Lappet moth} (Zo["o]l.), one of several species of bombycid
moths, which have stout, hairy caterpillars, flat beneath.
Two common American species ({Gastropacha Americana}, and
{Tolype velleda}) feed upon the apple tree.