Sea cucumber n. (Zool.) Any large holothurian, especially one of those belonging to the genus Pentacta, or Cucumaria, as the common American and European species. (Pentacta frondosa).
... other than loin of sea turtle. Similarly, here are some dolphin livers you might mistake for stewed pork. My chef is a skillful food processor who excels at pickling and preserving these various exhibits from the ocean. Feel free to sample all of these foods. Here are some preserves of sea cucumber that a Malaysian would declare to be unrivaled in the entire world, here's cream from milk furnished by the udders of cetaceans, and sugar from the huge fucus plants in the North Sea; and finally, allow me ... — 20000 Leagues Under the Seas • Jules Verne