1. biennial, plant, flora, plant life

usage: (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


1. biennial (vs. perennial) (vs. annual), two-year

usage: having a life cycle lasting two seasons; "a biennial life cycle"; "parsnips and carrots are biennial plants often grown as annuals"

2. biennial, biyearly, periodic (vs. aperiodic), periodical

usage: occurring every second year; "they met at biennial conventions"

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See also: biennial (Dictionary)