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See moon snail.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
any marine gastropod of the family Naticidae, having a rounded, short-spired, smooth shell.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||moon shell - marine gastropods having smooth rounded shells that form short spires|
seasnail - any of several creeping marine gastropods with a spirally coiled shell: whelks; tritons; moon shells; neritids
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