| 释义 |
棘皮动物jípí dòngwù无脊椎动物的一门,外皮一般具有石灰质的刺状突起,身体球形、星形或圆棒形,生活在海底,运动缓慢或不运动,如海星、海胆、海参、海百合等。{echinoderm; invertebrate such as starfish, sea urchin, sea cucumber and sea lily, with its skin covered with prickle-like calcarious outgrowths, its body in the shape of a ball, star or rod, inhabiting the bottom of the sea, slow in movement or motionless} |