any of various flat, disklike sea urchins, as Mellita testudinata or Echinarachnius parma, that live on sandy bottoms off the coasts of the U.S.
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You may have read the word "simmer" in a recipe or two, but what does it really mean?
Origin of sand dollar
An Americanism dating back to 1880–85
Words nearby sand dollar
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for sand dollar
any of various flattened disclike echinoderms of the order Clypeasteroida, of shallow North American coastal waters: class Echinoidea (sea urchins)
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