leaf cutter \leaf cutter\, leaf-cutter \leaf-cutter\n. (Zool.)
Any one of various species of wild bees of the genus
{Megachile}, which cut rounded pieces from the edges of
leaves, or the petals of flowers, to be used in the
construction of their nests, which are made in holes and
crevices, or in a leaf rolled up for the purpose. Among the
common American species are {Megachile brevis} and {Megachile
centuncularis}. Called also {rose-cutting bee}.
Syn: leaf-cutting bee, leaf-cutter bee.
[1913 Webster + WordNet 1.5]