Webster dictionary was developed by Noah Webster in the beginning of 19th century. On this website, you can find definition for biennial from the 1913 edition of Webster's Revised Unabridged Dictionary. Define biennial using one of the most comprehensive free online dictionaries on the web.

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Part of Speech: Noun
Results: 4
1. Happening, or taking place, once in two years; as, a biennial election.
2. Continuing for two years, and then perishing, as plants which form roots and leaves the first year, and produce fruit the second.
Part of Speech: noun
1. Something which takes place or appears once in two years; esp. a biennial examination.
2. A plant which exists or lasts for two years.
Examples of usage:
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