
1) Cetacean 2) Dolphin 3) Vaquita
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https://www.crosswordclues.com/clue/porpoise

1) Diving equipment manufacturer 2) Dolphin 3) French word used in English 4) Gregarious ocean mammal 5) Intelligent mammal 6) Marine mammal 7) Navy trainee 8) Playful sea creature 9) Relative of a dolphin 10) Sea hog 11) Underwater breathing apparatu 12) Victim of a drift net
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https://www.crosswordclues.com/clue/porpoise

Porpoises (s; also called mereswine) are small cetaceans of the family Phocoenidae; they are related to whales and dolphins. They are distinct from dolphins, although the word `porpoise` has been used to refer to any small dolphin, especially by sailors and fishermen. The most obvious visible difference between the two groups is that porpoises h.....
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http://en.wikipedia.org/wiki/Porpoise
[scuba gear] Porpoise is a tradename for scuba developed by Ted Eldred in Australia and made there from the late 1940s onwards. It included: ==A make of diving oxygen rebreather== This rebreather was developed by Ted Eldred in the late 1940s and early 1950s. Some were made and used for sport diving, but they did not go into full production....
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http://en.wikipedia.org/wiki/Porpoise_(scuba_gear)

• (n.) A true dolphin (Delphinus); -- often so called by sailors. • (n.) Any small cetacean of the genus Phocaena, especially P. communis, or P. phocaena, of Europe, and the closely allied American species (P. Americana). The color is dusky or blackish above, paler beneath. They are closely allied to the dolphins, but have a shorter snout...
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http://thinkexist.com/dictionary/meaning/porpoise/

specifically, any of six species of toothed whales distinguishable from dolphins by their more compact build, generally smaller size (maximum length ... [5 related articles]
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http://www.britannica.com/eb/a-z/p/96

1. <zoology> Any small cetacean of the genus Phocaena, especially P. Communis, or P. Phocaena, of Europe, and the closely allied American species (P. Americana). The colour is dusky or blackish above, paler beneath. They are closely allied to the dolphins, but have a shorter snout. ... Synonym: harbor porpoise, herring hag, puffing pig, and s...
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http://www.encyclo.co.uk/local/20973

Little-used alternate name for a bounce roll
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http://www.encyclo.co.uk/local/21601

A small cetacean with a stocky body and an indistinct beak; also used interchangeably with 'dolphin' as a general term.
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http://www.encyclo.co.uk/local/21699
Por'poise noun [ Middle English
porpeys , Old French
porpeis , literally, hog fish, from Latin
porcus swine +
piscis fish. See
Pork , and
Fish .]
1. (Zoology) Any small cetacean of the genus
Phocæna , especially
P. communis , o...
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http://www.encyclo.co.uk/webster/P/130

A porpoise is any small whale of the family Delphinidae that, unlike dolphins, have blunt snouts without beaks. Common porpoises of the genus Phocaena can grow to 1.8 metres long; they feed on fish and crustaceans.
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http://www.probertencyclopaedia.com/browse/BPA.HTM

HMS Porpoise was a British Porpoise Class minelayer submarine of 1500 tons displacement launched in 1932 that saw action during the Second World War. She was armed with one 4-inch gun; two machine guns and six 21-inch torpedo tubes in the bow. She was powered by diesel engines providing a top speed of 15 knots on the surface, and electric motors pr...
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http://www.probertencyclopaedia.com/browse/RP.HTM

[
n] - any of several small gregarious cetacean mammals having a blunt snout and many teeth
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http://www.webdictionary.co.uk/definition.php?query=porpoise
noun any of several small gregarious cetacean mammals having a blunt snout and many teeth
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https://www.encyclo.co.uk/local/20974

Any small whale of the family Delphinidae that, unlike dolphins, have blunt snouts without beaks. Common porpoises of the genus
Phocaena can grow to 1.8 m/6 ft long; they feed on fish and crustaceans
Found on
https://www.encyclo.co.uk/local/21221
No exact match found.