n. [ Shear + water; cf. G. wassersherer; -- so called from its running lightly along the surface of the water. ] (Zool.) Any one of numerous species of long-winged oceanic birds of the genus Puffinus and related genera. They are allied to the petrels, but are larger. The Manx shearwater (Puffinus Anglorum), the dusky shearwater (Puffinus obscurus), and the greater shearwater (Puffinus major), are well-known species of the North Atlantic. See Hagdon. [ 1913 Webster ]