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Centrechinoida

plural noun
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Cen·​trech·​i·​noi·​da | \ (ˌ)sen‧ˌtrekə̇ˈnȯidə \

Definition of Centrechinoida

: a large order of sea urchins having peristomial gills, sphaeridia, and an apically located anus — compare cidaroida , exocycloida

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History and Etymology for Centrechinoida

New Latin, from Centrechinus + -oida

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“Centrechinoida.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Centrechinoida. Accessed 7 Mar. 2021.

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