| 单词 | echinoderm |
| 释义 | echinoderm /i kuy"neuh derrm', ek"euh neuh-/, n. any marine animal of the invertebrate phylum Echinodermata, having a radiating arrangement of parts and a body wall stiffened by calcareous pieces that may protrude as spines and including the starfishes, sea urchins, sea cucumbers, etc. [1825-35; taken as sing. of NL Echinodermata, neut. pl. of ECHINODERMATUS < Gk echîn(os) sea urchin + -o- -O- + -dermatos -DERMATOUS] |
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