1. Happening, or taking place, once in two years; as, a biennial election.
2. Bot. Continuing for two years, and then perishing, as plants which form roots and leaves the first year, and produce fruit the second.
1. Something which takes place or appears once in two years; esp. a biennial examination.
2. Bot. A plant which exists or lasts for two years.
adj 1: occurring every second year; "they met at biennial
conventions" [syn: biyearly]
2: having a life cycle lasting two seasons; "a biennial life
cycle"; "parsnips and carrots are biennial plants often
grown as annuals" [syn: two-year] [ant: perennial, annual]
n : a plant having a life cycle that normally takes two seasons
from germination to death to complete; flowering
biennials usually bloom and fruit in the second season