[dahy-os-uh-suh n]
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  1. one of the clergy or people of a diocese.
  2. the bishop in charge of a diocese.

Origin of diocesan

1400–50; late Middle English (< Anglo-French) < Medieval Latin dioecēsānus. See diocese, -an
Related formsnon·di·oc·e·san, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for diocesan


  1. of or relating to a diocese
  1. the bishop of a diocese
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

Word Origin and History for diocesan

mid-15c., from French diocésain (15c.), from diocese (see diocese).

Online Etymology Dictionary, © 2010 Douglas Harper