Definition of cuttlefish
: any of various marine cephalopod mollusks (order Sepioidea, especially genus Sepia) having eight short arms and two usually longer tentacles and differing from the related squid in having a calcified internal shell
Recent Examples of cuttlefish from the Web
Long ago, the ancestors of octopuses, and indeed the ancestors of all other cephalopods like cuttlefish and squid, took refuge in the safety of their shells.
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Origin and Etymology of cuttlefish
Middle English cotul + English fish
First Known Use: 1591
CUTTLEFISH Defined for Kids
Definition of cuttlefish for Students
: a sea animal with ten arms that is related to the squid and octopus
Seen and Heard
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