biodiversity

noun

: biological diversity in an environment as indicated by numbers of different species of plants and animals

Did you know?

Biodiversity may become the rallying call for the next decade, wrote David Wake in the journal Science in 1989. Indeed, biodiversity is a word you're likely to encounter in writing about ecology and the environment today. But when Wake used it, "biodiversity" was still a relatively new addition to the English language, having first appeared in writing in the mid-1980s. Of course, the roots of biodiversity are much older. It evolved from a commingling of the descendants of the Greek noun bios, which means "mode of life," and the Latin verb divertere, which means "to turn aside" or "to go different ways."

Examples of biodiversity in a Sentence

Recent Examples on the Web
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Global climate, biodiversity and land conservation goals require around $570 billion in annual investment in nature by 2030. Marcene Mitchell, Fortune, 20 Sep. 2026 Activists of all ages are organizing events to promote sustainability, biodiversity and other environmental causes. Steve Lopez, Los Angeles Times, 19 Sep. 2026 The next ones covered homelessness, crisis management, biodiversity, work-study programs and noise pollution. Esther King, The Dial, 15 Sep. 2026 These efforts improve ecosystem resiliency, protect biodiversity and strengthen our landscapes to better withstand the impacts of a changing climate. Will Richmond, The Providence Journal, 10 Sep. 2026 See All Example Sentences for biodiversity

Word History

Etymology

bio- + diversity

First Known Use

1985, in the meaning defined above

Time Traveler
The first known use of biodiversity was in 1985

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Cite this Entry

“Biodiversity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biodiversity. Accessed 24 Sep. 2026.

Kids Definition

biodiversity

noun
bio·​di·​ver·​si·​ty -də-ˈvər-sət-ē How to pronounce biodiversity (audio)
-dī-
: biological variety in an environment as indicated by numbers of different species of plants and animals
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