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

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The idea of the Anthropocene is a prism to understand our influence on global biodiversity. — Literary Hub, 23 Oct. 2026 Neel Dhanesha is a senior writer at Vox, covering biodiversity loss and climate change. — Neel Dhanesha, Vox, 23 Oct. 2026 Eco effort The hotel uses its own solar power system, boasts LED lighting, has strict waste separation, does not use plastic products, and has green roofs and wildflower meadows to support biodiversity. — Condé Nast, Condé Nast Traveler, 22 Oct. 2026 At the 2022 biodiversity summit in Montreal, countries pledged to raise $200 billion a year for biodiversity by 2030. — Sydney Lake, Fortune, 21 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 27 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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