Synonyms of the word

decapod

• adj. (zoology) Having ten legs.
• n. (zoology) Any of various animals having ten legs or similar appendages, especially mollusks such as squid…
• n. (zoology) Any crustacean, of the order Decapoda, such as crabs or lobsters.
• n. (rail transport) A nickname for either the 0-10-0 or 2-10-0 train configurations. Sometimes capitalized.

cephalopod

• n. Any mollusc, of the class Cephalopoda, which includes squid, cuttlefish, octopus, nautiloids etc.

crustacean

• n. Any arthropod of the subphylum Crustacea, including lobsters, crabs, shrimp, barnacles and woodlice.