Petrels are a group of seabirds that are known for their long, narrow wings and efficient flying abilities. There are several synonyms for the word "petrels" including shearwaters, fulmars, and albatrosses. Shearwaters are a type of petrel that are known for their long, pointed wings and streamlined bodies. Fulmars are also a type of petrel that are similar to shearwaters in appearance, but they have a more rounded body and shorter wings. Albatrosses are the largest type of petrel and are known for their impressive wingspan, which can reach up to 11 feet. Overall, each of these synonyms for petrels offer a different variation on this unique group of seabirds.