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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Over time, chemical applications reduce the biodiversity of the outdoor environment, as well as disrupting natural processes that keep pests in check. Malana Vantyler, USA Today, 6 Nov. 2025 In the heart of the Amazon rainforest, the impact on rivers is shocking and experts are sounding the alarm on what this means for the region, a biodiversity hot spot and crucial climate change buffer. Laura Paddison, CNN Money, 6 Nov. 2025 Advertisement Earle advocated for the High Seas Treaty, a legal framework for protecting biodiversity in international waters, and continues to call for global efforts to protect oceans. Justin Worland, Time, 5 Nov. 2025 Indiana has rich biodiversity with thousands of species in unique habitats, but the ornamental plant trade, globalization and development have introduced new threats to these ecosystems. Sophie Hartley, IndyStar, 5 Nov. 2025 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 11 Nov. 2025.

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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