| 释义 |
bi·en·ni·al
I. \(ˈ)bī|enēəl, -nyəl\ adjective
Etymology: Latin biennium period of two years (from bi- + -ennium, from annus year) + English -al — more at annual
1. : occurring, appearing, or being made, done, or acted upon every two years — compare biannual
2. : continuing or lasting for two years — used specifically of plants (as the parsnip) that require two growing seasons in which to go from seed to seed; compare annual
II. noun
(-s)
: something that is biennial (as an exhibition or examination); especially : a biennial plant |