biennial
Use Biennial in a sentence
i adjective Also, biyearly (for defs 1, 2).
1.
happening every two years: biennial games.
2.
lasting or enduring for two years: a biennial life cycle.
3.
Botany. completing its normal term of life in two years, flowering and fruiting the second year, as beets or winter wheat.
noun
4.
any event occurring once in two years.
5.
Botany. a biennial plant.
00:10
Biennial
is always a great word to know.
So is autotroph. Does it mean:
| form of a diploid plant in the alternation of generations that produces asexual spores |
| organism capable of self-nourishment which uses photosynthesis or chemosynthesis for energy |
Related forms
bi·en·ni·al·ly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To biennial
Collins
World English Dictionary
biennial (baɪˈɛnɪəl) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —adj | |
| 1. | occurring every two years |
| 2. | Compare biannual lasting two years |
| —n | |
| 3. | annual Compare perennial a 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 year |
| 4. | an event that takes place every two years |
| bi'ennially | |
| —adv | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History
biennial
1620s, from L. biennium "two-year period," from bi- + annus "year." The noun meaning "a biennial plant" is attested by 1770.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
| biennial (bī-ěn'ē-əl) Pronunciation Key
Adjective Completing a life cycle normally in two growing seasons. Noun A 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 © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Nearby Words
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