单词 pennatulacean 释义 pennatulacean, a. and n. Zool.|pntjule()n|[f. mod.L. Pennatulacea neut. pl., f. Pennatula, the typical genus.]a. adj. Belonging to the order Pennatulacea of alcyonarian polyps. b. n. A polyp of this order. So pennatulaceous |-es|...