单词 cetacea 释义 ‖ cetacea, n. pl. Zool.|ste()|[mod.L., f. ctus, a. Gr. ῆ whale; see -acea.]The order of marine Mammalia containing the whales and their congeners.1830Lyell Princ. Geol. I. 151 The bones of whales and other cetacea.1833Sir C. Bell Hand...