Category:Triennial

Tri*en"ni*al, a. Etym: [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.

2. Happening, coming about, or appearing once in every three years; As, triennial elections; a triennial catalogue; a triennial Visitation. T. Warton.

Triennial Tri*en"ni*al, n.

Defn: something which takes place or appears once in three years.