snakehead

[sneyk-hed]
noun
1.
a turtlehead plant.
2.
any elongate fish of the family Channidae (or Ophicephalidae), having a large head with a deeply cleft mouth and able to breathe atmospheric oxygen.

Origin:
1775–85, Americanism; snake + head

Dictionary.com Unabridged

snake's-head

[sneyks-hed]

Origin:
1730–40

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
snakehead (ˈsneɪkˌhed)
 
n
a Chinese criminal involved in the illegal transport of Chinese citizens to other parts of the world
 
[C20: origin uncertain]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Britannica
Encyclopedia

snakehead

any of a number of species of freshwater fish of the family Channidae, found in Africa and Asia. Snakeheads, long-bodied and more or less cylindrical in cross section, have large mouths and long, single dorsal and anal fins; they range from about 10 to 90 cm (4 to 36 inches) long. Snakeheads are able to breathe atmospheric air with the aid of a pair of vascular cavities located near the gills. Carnivorous in habit, they can survive for extended periods out of water. In some areas, they are used as food.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
It was not the northern snakehead, the fish that walks on land and breathes air.
The aquarium industry is already recognized as a source of freshwater invasive species such as the snakehead.
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