What is the meaning of Echinodermata?

(n.pl.) One of the grand divisions of the animal kingdom. By many writers it was formerly included in the Radiata.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). echinodermata. Retrieved September 24, 2026, from http://smartdefine.org/echinodermata/definitions/2001470
ChicagoWebster's. 2011. "echinodermata" http://smartdefine.org/echinodermata/definitions/2001470 (accessed September 24, 2026).
HarvardWebster's 2011, echinodermata, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/echinodermata/definitions/2001470>.
MLAWebster's. "echinodermata" 27 May 2011. Web. 24 September 2026. <http://smartdefine.org/echinodermata/definitions/2001470>
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