Leatherback is a common term used to refer to the largest sea turtle, which is known for its distinctive leather-like shell. However, there are other words that can be used to describe this fascinating creature. Some synonyms for the word leatherback include the following: Dermochelys coriacea, leather turtle, lute turtle, and simply leather. These terms all refer to the same species of unique sea turtle that is found in almost every ocean in the world. When you hear the word leatherback, remember that there are many other ways to describe this incredible species that has captured the hearts and imaginations of people around the globe.