Pronunciation: /sɪˈteɪʃən/
noun a marine mammal of the order Cetacea, which includes whales, dolphins, and porpoises
A1 A cetacean is a marine mammal like a dolphin or whale.
A2 Many people enjoy going on whale watching tours to see cetaceans in their natural habitat.
B1 Scientists study cetaceans to learn more about their behavior and communication patterns.
B2 Cetaceans are known for their intelligence and complex social structures.
C1 Conservation efforts are being made to protect cetaceans from threats such as pollution and habitat loss.
C2 Research on cetaceans has led to important discoveries about their evolutionary history and ecological role in marine ecosystems.
formal The study of cetacean behavior is a complex and fascinating field of research.
informal I saw a group of cetaceans swimming in the ocean today, they were so graceful.
slang Dude, did you see that huge cetacean jump out of the water? It was epic!
figurative Her singing voice was like the song of a majestic cetacean, powerful and beautiful.
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