any marine mollusk of the class Scaphopoda, having a curved, tapering shell that is open at both ends.
the shell itself.
Origin of tooth shell
First recorded in 1705–15
Also called tusk shell.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012