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echinodermatous

American  
[ih-kahy-nuh-dur-muh-tuhs, ek-uh-nuh-] / ɪˌkaɪ nəˈdɜr mə təs, ˌɛk ə nə- /

adjective

  1. belonging or pertaining to the echinoderms.


Etymology

Origin of echinodermatous

First recorded in 1825–35; echinoderm, -ous