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
From the M-W Editors
Recent Examples of cuttlefish from the Web
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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.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cuttlefish'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Illustration of cuttlefish
Origin and Etymology of cuttlefish
Middle English cotul + English fish
First Known Use: 1591
CUTTLEFISH Defined for Kids
cuttlefish
playDefinition of cuttlefish for Students
: a sea animal with ten arms that is related to the squid and octopus
Learn More about cuttlefish
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See words that rhyme with cuttlefish Spanish Central: Translation of cuttlefish Nglish: Translation of cuttlefish for Spanish speakers Britannica.com: Encyclopedia article about cuttlefish
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