
1) Air-breathing swimmer 2) Animal order 3) Cetaceous 4) Dolphin 5) Dolphins 6) Porpoise 7) Whale or dolphin
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https://www.crosswordclues.com/clue/cetacean

1) Cetaceous 2) Narwal 3) Orca 4) Whale
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https://www.crosswordclues.com/clue/cetacean

member of the group of marine mammals that includes whales, dolphins and porpoises. They are the mammals most fully adapted to aquatic life and are noted for their high intelligence.
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http://en.wikipedia.org/wiki/Glossary_of_fishery_terms

type of aquatic mammal, including whales and dolphins
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http://phrontistery.info/c.html

• (n.) One of the Cetacea.
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http://thinkexist.com/dictionary/meaning/cetacean/

any member of an entirely aquatic group of mammals commonly known as whales, dolphins, and porpoises. The ancient Greeks recognized that cetaceans ... [4 related articles]
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http://www.britannica.com/eb/a-z/c/48

A marine mammal belonging to the Latin order Cetacea, which includes all whales, dolphins and porpoises.
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http://www.encyclo.co.uk/local/21699

An aquatic mammal of the order Cetacea, including whales, porpoises and dolphins.
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http://www.encyclo.co.uk/local/22141
Ce·ta'cean noun (Zoology) One of the Cetacea.
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http://www.encyclo.co.uk/webster/C/49

a whale, dolphin or porpoise
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http://www.pbs.org/kqed/oceanadventures/glossary/

member of the group of marine mammals that includes whales, dolphins and porpoises. They are the mammals most fully adapted to aquatic life and are noted for their high intelligence.
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[
adj] - of or relating to whales and dolphins etc 2. [n] - large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales
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http://www.webdictionary.co.uk/definition.php?query=cetacean

cetacean, cetaceous Any of various wholly aquatic placental mammals belonging to the order Cetacea, which includes the dolphins, porpoises, and whales. Their bodies are fish-shaped and adapted for swimming, with forelimbs in the form of paddlelike flippers. Functional hindlimbs are not seen. The long tail ends in two tranverse flukes, horizontally ...
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http://www.wordinfo.info/words/index/info/view_unit/428/
cetaceous adjective of or relating to whales and dolphins etc
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https://www.encyclo.co.uk/local/20974

Any member of the order Cetacea—a group of primarily marine mammals occurring throughout the world's oceans, as well as in some tropical rivers and lakes. The name whale is often used to refer to larger species, while dolphin or porpoise is used for the smaller members of the order.
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https://www.encyclo.co.uk/local/21411

Marine mammal belonging to the order Cetacea, which includes all whales, dolphins, and porpoises.
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https://www.encyclo.co.uk/local/23466

belonging to the Cetacea, an order of aquatic, chiefly marine mammals, including the whales and dolphins.
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https://www.infoplease.com/dictionary/cetacean
No exact match found.