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)
Word origin
C17: so named because their wings seem to clip the waves when they are flying low
shearwater in American English
(ˈʃɪrˌwɔtər; ˈʃɪrˌwɑtər)
noun
any of a genus (Puffinus, family Procellariidae) of black-and-white tubenose sea birds that skim the water in flight