Shearwater
noun
1.
any of several long-winged petrels of the genus Puffinus that appear to shear the water with their wing tips when flying low.
noun
1.
any of several oceanic birds of the genera Puffinus, such as P. puffinus (Manx shearwater), Procellaria, etc, specialized for an aerial or aquatic existence: family Procellariidae, order Procellariiformes (petrels)
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