Nā'tant, a.
a. [Lat. natans, from natare, to swim, v. intensive from nare, id.; Fr. natant, It. natante, Sp. nadante.]
Sense 1. (Bot.) Floating on the surface of water, as the leaf of an aquatic plant.
Sense 2. (Her.) Placed horizontally across the field, as if swimming; — said of all sorts of fishes except the flying-fish and shell-fish. [Obs.]