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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Not all, but much of a cotton garment’s environmental impact is decided before the fiber leaves the farm, between water, biodiversity, pesticides and synthetic fertilizer. — Sj Studio, Footwear News, 13 Oct. 2026 The territory is also looking at its exceptional biodiversity as a platform for innovation, particularly in beauty, pharmaceuticals and healthcare. — Panorama Media Ltd, Miami Herald, 9 Oct. 2026 Eco effort At the end of last year, Banyan Tree established the Rewilding Banyan Fund, set up to help restore natural habitats and increase biodiversity at all Banyan Group properties. — Condé Nast, Condé Nast Traveler, 6 Oct. 2026 The final episode focuses on the local conservation leaders and researchers working to preserve Africa’s rich biodiversity for future generations. — Jennifer Ouellette, ArsTechnica, 4 Oct. 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 14 Oct. 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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