nu·​di·​branch | \ ˈnü-də-ˌbraŋk How to pronounce nudibranch (audio) , ˈnyü- \
plural nudibranchs

Definition of nudibranch

: any of an order (Nudibranchia) of marine opisthobranch mollusks without a shell in the adult state and without true gills

Illustration of nudibranch

Illustration of nudibranch

Other Words from nudibranch

nudibranch adjective

Examples of nudibranch in a Sentence

Recent Examples on the Web For example, the Hilton’s nudibranch, a predatory sea slug, expanded northward during the Blob, which led to a decline in local nudibranchs. Erica Nielsen, The Conversation, 4 Oct. 2021 The nudibranch, besides using the hydroids for habitat, regularly consume its home colony’s polyps. Sid Perkins, Science | AAAS, 31 Oct. 2017 With their dazzling colors and intricate patterns, nudibranchs are among the world’s most glamorous marine creatures. Brigit Katz, Smithsonian, 4 Nov. 2017 The video from his April 17 dive revealed vibrant sea creatures that have made the chilly northern waters their home—among them, a transparent Arctic jellyfish, a sparkly skeleton shrimp, and a white nudibranch, or soft-bodied mollusk. Hannah Lang, National Geographic, 6 July 2017 But the nudibranchs were doing something that had never been observed before: stealing prey by eating the original predator. Brigit Katz, Smithsonian, 4 Nov. 2017 The nudibranch Cratena peregrina (pictured), a type of sea slug, often attacks prey that have just eaten, thus getting an extra boost of nutrition from the prey’s undigested meal, a new analysis reveals. Sid Perkins, Science | AAAS, 31 Oct. 2017 If threatened by a predator, the nudibranch will discharge the stinging cells, says Valdés. Liz Langley, National Geographic, 28 Jan. 2017 Name a flashy color, and there’s probably a nudibranch that rocks it, like a 1980s neon nightmare. Matt Simon, WIRED, 7 Nov. 2014

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nudibranch.' 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 nudibranch

1844, in the meaning defined above

History and Etymology for nudibranch

New Latin Nudibranchia, from Latin nudus + Greek branchia gills

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The first known use of nudibranch was in 1844

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Last Updated

14 Oct 2021

Cite this Entry

“Nudibranch.” Dictionary, Merriam-Webster, Accessed 8 Dec. 2021.

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