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definitions

sexcentenary

[seks-sen-ten-uh-ree, seks-sen-tn-er-ee or, esp. British -sen-tee-nuh-ree]
adjective
  1. pertaining to 600 or a period of 600 years; marking the completion of 600 years.
noun, plural sex·cen·ten·ar·ies.
  1. a 600th anniversary or its celebration.

Origin of sexcentenary

First recorded in 1770–80; sex- + centenary
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for sexcentenary

sexcentenary

adjective
  1. of or relating to 600 or a period of 600 years
  2. of, relating to, or celebrating a 600th anniversary
noun plural -naries
  1. a 600th anniversary or its celebration

Word Origin for sexcentenary

C18: from Latin sexcentēnī six hundred each
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