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Webster's New World College Dictionary » biennial
biennial
biennial definition
bi·en·nial (bī en′ē əl)
adjective
- happening every two years
- lasting or living two years
Etymology: < L biennium, period of two years < bi-, bi- + annus, year + -al
noun
- a biennial event or occurrence
- Bot. a plant that lasts two years, usually producing flowers and seed the second year
Related Forms:
- biennially bi·en′·ni·ally adverb
Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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