单词 | biennial |
释义 | biennial[ bahy-en-ee-uhl ] / baɪˈɛn i əl / SEE SYNONYMS FOR biennial ON THESAURUS.COM adjective Also biyearly (for defs. 1, 2).happening every two years: biennial games. lasting or enduring for two years: a biennial life cycle. Botany. completing its normal term of life in two years, flowering and fruiting the second year, as beets or winter wheat. nounany event occurring once in two years. Botany. a biennial plant. Origin of biennialFirst recorded in 1615–25; bienni(um) + -al1 words often confused with biennialSee bi-1. OTHER WORDS FROM biennialbi·en·ni·al·ly, adverbWORDS THAT MAY BE CONFUSED WITH biennialbiannual, biennial , semiannual, semiyearly (see confusables note at bi-1)Words nearby biennialBielschowsky's disease, Bielsko-Biała, bien entendu, Bien Hoa, Bienne, biennial, biennium, bien pensant, bienvenu, bienvenue, Bienville Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for biennialBritish Dictionary definitions for biennialbiennial / (baɪˈɛnɪəl) / adjectiveoccurring every two years lasting two yearsCompare biannual nouna plant, such as the carrot, that completes its life cycle within two years, developing vegetative storage parts during the first year and flowering and fruiting in its second yearCompare annual (def. 3), perennial (def. 3) an event that takes place every two years Derived forms of biennialbiennially, adverbCollins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for biennialbiennial [ bī-ĕn′ē-əl ] AdjectiveCompleting a life cycle normally in two growing seasons. NounA biennial plant. In the first year, biennials normally produce a short stem, a rosette of leaves, and a fleshy root that acts as food supply. In the second season, biennials blossom, produce seed, use up their food supply, and die. Carrots, parsnips, and sugar beets are examples of biennials. Compare annual perennial. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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