sea urchin

noun

: any of numerous echinoderms (class Echinoidea) that are usually enclosed in thin brittle globular tests covered with movable spines

Examples of sea urchin in a Sentence

Recent Examples on the Web
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Raw, cured, seared and dry-aged fish arrive one after the other; a recent menu also included sea urchin, savory egg custard with snow crab and marbled tofu. Miguel Otárola, Denver Post, 24 Sep. 2025 Lifting the lid revealed a small tart topped with a tongue of Spanish sea urchin, resting on a nubbly bed of cancha nuts. Brock Keeling, Oc Register, 22 Sep. 2025 Expect Hokkaido sea urchin, boxed like a treasure, and more than 800 wines. AFAR Media, 2 Sep. 2025 Signature menu dishes include an Oyster tasting menu with fresh native oysters, roasted octopus with marinated bell peppers, olives and basil and spaghetti with sea urchin & green peas. Joanne Shurvell, Forbes.com, 27 Aug. 2025 See All Example Sentences for sea urchin

Word History

First Known Use

1591, in the meaning defined above

Time Traveler
The first known use of sea urchin was in 1591

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Cite this Entry

“Sea urchin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sea%20urchin. Accessed 30 Sep. 2025.

Kids Definition

sea urchin

noun
: any of a class of small marine invertebrate animals that are echinoderms, usually live on or burrow in the sea bottom, and are enclosed in roundish shells covered with spines that can move

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