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tercentenary

or ter·cen·ten·ni·al

[tur-sen-ten-uh-ree, tur-sen-tn-er-ee; especially British tur-sen-tee-nuh-ree]
See more synonyms on Thesaurus.com
adjective, noun, plural ter·cen·ten·ar·ies.
  1. tricentennial.

Origin of tercentenary

First recorded in 1835–45; ter- + centenary

tricentennial

[trahy-sen-ten-ee-uh l]
adjective
  1. pertaining to 300 years or a period of 300 years.
  2. marking the completion of such a period: a tricentennial celebration.
noun
  1. a 300th anniversary or its celebration.
Also tercentenary, tercentennial.

Origin of tricentennial

First recorded in 1880–85; tri- + centennial
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for tercentennial

Historical Examples

  • I again heartily commend to your favorable consideration the tercentennial celebration at Jamestown, Va.

    State of the Union Addresses of Theodore Roosevelt

    Theodore Roosevelt


British Dictionary definitions for tercentennial

tercentenary

tercentennial

adjective
  1. of or relating to a period of 300 years
  2. of or relating to a 300th anniversary or its celebration
noun plural -tenaries or -tennials
  1. an anniversary of 300 years or its celebration
Also called: tricentennial
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 tercentennial

tercentenary

n.

1844, "pertaining to a period of 300 years," from ter- "three times" + centenary.

Online Etymology Dictionary, © 2010 Douglas Harper