actinian

n.any sea anemone or related animal

同义词：actiniaactiniarian

1. The actinian attaches itself to rocks in the ocean.
   海葵附着在海洋的岩石上。
2. Divers often observe vibrant actinians in coral reefs.
   潜水员经常在珊瑚礁中观察到色彩鲜艳的海葵。