A. adj. Of or pertaining to the Cetacea.
1850. Dana, Geol., App. i. 722. Fragments of other cetacean bones.
1851. D. Wilson, Preh. Ann. (1863), I. ii. 49. The cetacean remains lay above the highest tide level.
B. An animal belonging to the Cetacea (to which word this supplies a singular).
1836. Todd, Cycl. Anat., I. 562/2. The horizontal position of the tail-fin at once distinguishes the cetacean from the fish.