cut·​tle·​fish | \ ˈkə-tᵊl-ˌfish How to pronounce cuttlefish (audio) \

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

Illustration of cuttlefish

Illustration of cuttlefish

Examples of cuttlefish in a Sentence

Recent Examples on the Web Their lack of yoked eyes is not the only thing that’s different about a cuttlefish’s stereopsis. Sara Kiley Watson, Popular Science, "Cuttlefish perceive depth—and they wore 3D glasses to prove it," 9 Jan. 2020 Remarkably, both praying mantises and cuttlefish are unfazed by these inverted background patterns. Katherine J. Wu, Smithsonian Magazine, "Scientists Velcroed 3-D Glasses to Cuttlefish to Study Their Depth Perception," 8 Jan. 2020 Metasepia pfefferi Laboratory scientists are raising another species, known as the flamboyant cuttlefish, which has masterful camouflage of its own. Washington Post, "Masters of camouflage," 7 Feb. 2019 The shelves up high behind the counter were full of Thai snack imports for sale, like sweet basil Lay's chips, tom yum powder–dusted seaweed crisps, Cheeto-textured cuttlefish flavored rice balls, and sugar rush–inducing bright kelly green soda. Alex Erdekian, Condé Nast Traveler, "Currently Obsessed With: The Cafeteria-Style Lunch at Little Wayla," 9 Jan. 2020 But as a new study shows cuttlefish experience this phenomenon as well. Sara Kiley Watson, Popular Science, "Cuttlefish perceive depth—and they wore 3D glasses to prove it," 9 Jan. 2020 In other words, cuttlefish can’t perfectly match a coral reef. Washington Post, "Masters of camouflage," 7 Feb. 2019 Cargo hold: The cargo hold will feature garden eels and two fish with camouflage – cuttlefish and frogfish. Sarah Brookbank,, "Newport Aquarium announces new exhibit: Realm of the Eels," 8 Nov. 2019 Scientists there were able to reliably raise their own cuttlefish across generations and their findings offered invaluable insight into how octopuses could be reared as well. Tik Root, Time, "Inside the Race to Build the World's First Commercial Octopus Farm," 21 Aug. 2019

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.

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First Known Use of cuttlefish

1591, in the meaning defined above

History and Etymology for cuttlefish

Middle English cotul + English fish

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Time Traveler for cuttlefish

Time Traveler

The first known use of cuttlefish was in 1591

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Statistics for cuttlefish

Last Updated

1 Feb 2020

Cite this Entry

“Cuttlefish.” Dictionary, Merriam-Webster, Accessed 17 Feb. 2020.

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More Definitions for cuttlefish


cut·​tle·​fish | \ ˈkə-tᵊl-ˌfish How to pronounce cuttlefish (audio) \

Kids Definition of cuttlefish

: a sea animal with ten arms that is related to the squid and octopus

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More from Merriam-Webster on cuttlefish

Rhyming Dictionary: Words that rhyme with cuttlefish

Spanish Central: Translation of cuttlefish

Nglish: Translation of cuttlefish for Spanish Speakers Encyclopedia article about cuttlefish

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