- united in essence; having the same essence or nature.
Origin of coessential
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- Christianity being one in essence or nature: a term applied to the three persons of the Trinity
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