noun pl. cuttlefish, cuttlefishes
any of a family (Sepiidae) of cephalopods that have suckers on their eight arms and two tentacles, a hard internal shell, large complex eyes, and a water-ejecting jetlike siphon for locomotion: when in danger, most cuttlefishes eject a dark-brown, inklike fluid
Origin:
ME codel < OE cudele, akin to Norw dial. kaule (*kodle), OLowG cudele, older Du kuttlevisch: sense “pouch fish”: for IE base see cod