tooth shell

tooth shell

noun
1.
any marine mollusk of the class Scaphopoda, having a curved, tapering shell that is open at both ends.
2.
the shell itself.
Also called tusk shell.


Origin:
1705–15

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
tooth shell
 
n
another name for the tusk shell

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

tooth shell

any of several marine mollusks of the class Scaphopoda. There are four genera of tusk shells (Dentalium is typical and most common) and more than 350 species. Most tusk shells live in fairly deep water, sometimes to depths of about 4,000 metres (13,000 feet); many deep-sea species are cosmopolitan in distribution

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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