Triennial

Definition:

• (a.) Continuing three years; as, triennial parliaments; a triennial reign.
• (a.) Happening, coming about, or appearing once in every three years; as, triennial elections; a triennial catalogue; a triennial visitation.
• (n.) Something which takes place or appears once in three years.

Compare triennial with other words:

tricennial vs. triennial

centennial vs. triennial

quadrennial vs. triennial

biennial vs. triennial

anniversary vs. triennial

triennial vs. triennially

triennial vs. year

three vs. triennial

tercentenary vs. triennial