Biennial
From BiblePortal Wikipedia
Biennial [1]
(1): (n.) Something which takes place or appears once in two years; esp. a biennial examination.
(2): (a.) Happening, or taking place, once in two years; as, a biennial election.
(3): (a.) Continuing for two years, and then perishing, as plants which form roots and leaves the first year, and produce fruit the second.
(4): (n.) A plant which exists or lasts for two years.
