tricentenary

tricentenary tricentennial (ˌtraɪsɛnˈtɛnɪəl) 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

3. an anniversary of 300 years or its celebration

Abbreviation: tercentenary, tercentennial Examples from the Web for tricentenary Historical Examples of tricentenary

Associated words: tercentenary, tricentenary, tri-centennial.

Putnam’s Word Book

Louis A. Flemming