What Does The Word Echinoderm Mean In Greek?

What Does The Word Echinoderm Mean In Greek? What does the word echinoderm mean in Greek? The word “echinoderm” is made up from Greek ἐχινόδερμα, “spiny skin“, cf. ἐχῖνος, “hedgehog; sea-urchin” and δέρμα, “skin”, echinodérmata being the Greek plural form. The echinoderms are important both biologically and geologically. What does echinoderm mean in Greek? 1834,