biennial

nouns

(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
biennial
domain category
the branch of biology that studies plants
botany, phytology
is a type of (narrower)
(botany) a living organism lacking the power of locomotion
flora, plant, plant life

adjectives

having a life cycle lasting two seasons
"a biennial life cycle"; "parsnips and carrots are biennial plants often grown as annuals"
biennial, two-year
antonym
perennial
antonym
annual
occurring every second year
"they met at biennial conventions"
biennial, biyearly