noun🔗ShareAn animal belonging to the order Cetacea, including dolphins, porpoises, and whales."The tour promised spiritual experiences with humpback whales and other cetaceans, but all we saw were seagulls and a dead sea otter."animalbiologyoceannatureChat with AIVocabulary GamePractice Reading
adjective🔗SharePertaining to the zoologic order Cetacea, or associated with species falling under that taxonomic hierarchy."The poached blubber was definitely cetacean in origin, but the particular species could not be identified."animalbiologyoceannaturefishscienceChat with AIVocabulary GamePractice Reading
adjective🔗Share(by extension, sometimes figurative) Resembling or relating to large aquatic mammals."The obese woman, ungainly on land, moved with a kind of cetacean grace in the water."animalorganismbiologyoceannatureChat with AIVocabulary GamePractice Reading