storm petrel definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
any of a family (Hydrobatidae) of petrels; esp., a black-and-white species (Hydrobates pelagicus) of the N Atlantic and the Mediterranean
storm petrel definition by American Heritage Dictionary
Any of various small sea birds of the family Hydrobatidae, especially Hydrobates pelagicus, of the North Atlantic and the Mediterranean, having sooty plumage and a white rump. Also called stormy petrel.