plural noun
Eleu·​ther·​o·​zoa | \-thərəˈzōə\

Definition of Eleutherozoa 

: a subphylum or other division of Echinodermata including the Asteroidea, Ophiuroidea, Echinoidea, and Holothurioidea

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Other Words from Eleutherozoa

eleutherozoan \ ⸗¦⸗⸗⸗¦zōən \ adjective or noun
eleutherozoic \ -​ōik \ adjective

History and Etymology for Eleutherozoa

New Latin, from eleuther- + -zoa

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