Found 2 items, similar to Triennial.
English → English (WordNet) Definition: triennial triennial adj : occurring every third year or lasting 3 years n : the 300th anniversary (or the celebration of it) [syn: tercentennial, tercentenary]
English → English (gcide) Definition: Triennial Triennial \Tri*en"ni*al\, a. [L. triennium the space of three years; tri- (see Tri-) + annus year. See Annual.] 1. Continuing three years; as, triennial parliaments; a triennial reign. --Howell. [1913 Webster] 2. Happening, coming about, or appearing once in every three years; as, triennial elections; a triennial catalogue; a triennial visitation. --T. Warton. [1913 Webster] Triennial \Tri*en"ni*al\, n. Something which takes place or appears once in three years. [1913 Webster]