noun🔗ShareAny of various squid-like cephalopods (marine mollusks) of the order Sepiida that have eight arms, two retractable tentacles, and a calcareous internal shell, and can eject a dark ink when threatened"The diver photographed a cuttlefish changing its color to blend in with the coral reef. "animalfishoceanbiologyChat with AIVocabulary GamePractice Reading
