noun, plural os·tra·ca [os-truh-kuh] /ˈɒs trə kə/.
(in ancient Greece) a potsherd, especially one used as a ballot on which the name of a person voted to be ostracized was inscribed.
Origin of ostracon
1880–85; < Greek óstrakon; see ostracize
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for ostraca
Historical Examples of ostraca
Here the papyri and ostraca have put a large material at our disposal, but the circumstances in Egypt3 4.
The ostraca, or rough notes of work accounts, and plans drawn on pieces of limestone or pottery.
(in ancient Greece) a potsherd used for ostracizing
Word Origin for ostracon
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