'Tricentenary' definitions:
Definition of 'tricentenary'
From: WordNet
adjective
Of or relating to or completing a period of 300 years [syn: tricentenary, tricentennial]
Definition of 'Tricentenary'
From: GCIDE
- Tricentenary \Tri*cen"te*na*ry\, a. [Pref. tri- + centenary.] Including, or relating to, the interval of three hundred years; tercentenary. -- n. A period of three centuries, or three hundred years, also, the three-hundredth anniversary of any event; a tercentenary. [1913 Webster]