| 释义 |
echinoderm
UK [ɪ'kaɪ.nəʊ.dɜ:m] US [-dɝ:m] noun countable specialized
■a type of sea animal with bumps or spines on its skin and a body made of five equal parts arranged symmetrically around the centre 棘皮动物（一种海洋生物，表皮凸起或有棘刺，身体呈五辐对称形）•Echinoderms like the starfish live on the sea floor.像海星这样的棘皮动物生活在海底。 |