Adjective: biennial bI'e-nee-ul
- Occurring every second year
"they met at biennial conventions";
- biyearly
- (botany) having a life cycle lasting two seasons
"parsnips and carrots are biennial plants often grown as annuals"; "a biennial life cycle";
- two-year
- (botany) 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
"Carrots are a common biennial crop"
Derived forms: biennials
See also: periodic, periodical
Type of: flora, plant, plant life
Encyclopedia: Biennial