Meaning & use
Cetacean
Last updated
A marine mammal belonging to the order Cetacea, which includes whales, dolphins, and porpoises.
See it in a sentence
The blue whale is the largest cetacean ever known to have existed.
Researchers tagged several cetaceans to study their migration patterns.
A note on using this word
From Latin 'cetus' and Greek 'ketos,' both meaning 'large sea creature' or 'whale.'
Words with a similar meaning
whalemarine mammal
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Another way to use it
2. adjective
Relating to or belonging to the order of marine mammals that includes whales and dolphins.
The museum has a cetacean skeleton on display.
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