biodiversity

noun

bio·​di·​ver·​si·​ty ˌbī-(ˌ)ō-də-ˈvər-sə-tē How to pronounce biodiversity (audio)
-dī-
: biological diversity in an environment as indicated by numbers of different species of plants and animals
biodiverse adjective

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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Today, as conversations around climate change, biodiversity, and food sustainability grow increasingly urgent, Providence stands as proof that culinary excellence and environmental responsibility can coexist beautifully and deliciously. Roger Sands, Forbes.com, 6 June 2026 Applicants may interpret topics such as climate justice, corporate greenwashing, Indigenous rights, material innovation, wildlife and biodiversity, waste and pollution, grassroots activism, recycling and circularity, and the physical and mental impacts of the climate crisis. Vogue, 6 June 2026 Similar projects in states including Utah and Washington have significantly reduced wildlife-vehicle collisions and encouraged biodiversity. Alex Wigglesworth, Los Angeles Times, 4 June 2026 The development is planned within a nature reserve and one of Albania’s most valuable biodiversity areas, a key stopover for migratory birds along the Adriatic coast. ABC News, 3 June 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 9 Jun. 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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