n. (Zool.) Any one of several species of elasmobranch fishes of the genus Pristis. They have a sharklike form, but are more nearly allied to the rays. The flattened and much elongated snout has a row of stout toothlike structures inserted along each edge, forming a sawlike organ with which it mutilates or kills its prey. [ 1913 Webster ]

n. (Zool.) Any one of numerous species of hymenopterous insects belonging to the family Tenthredinidae. The female usually has an ovipositor containing a pair of sawlike organs with which she makes incisions in the leaves or stems of plants in which to lay the eggs. The larvae resemble those of Lepidoptera. [ 1913 Webster ]