See Also: biennial(medicine)
Biennial(money)
biennial(dictionary)
biennial(encyclopedia)
biennial(dictionary)

biennial (iou)



biennial adjective & noun. E17.
[from Latin biennis of two years, or BIENNIUM: see BI-, -AL1, and cf. ANNUAL.]
A. adjective.
Existing or lasting for two years; esp. (Botany) that is a biennial. E17.
Occurring every two years. M18.
b. noun.
Botany. A plant which springs from seed and vegetates one year, and flowers, fructifies, and perishes the next. L18.
An event taking place biennially. Chiefly US. M19.
biennially adverb every two years L18.