Biennial (adjective)
definition:
having a life cycle lasting two seasons
example:
"a biennial life cycle"
Synonyms
Two-yearBiennial (adjective)
definition:
occurring every second year
example:
"they met at biennial conventions"
Synonyms
BiyearlyBiennial (noun)
definition:
(botany) a plant having a life cycle that normally takes two seasons from germination to death to complete
example:
"flowering biennials usually bloom and fruit in the second season"