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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Current trajectories point toward multiple simultaneous crises: climate breakdown, biodiversity collapse, and social fragmentation. Cornelia C. Walther, Forbes.com, 14 Aug. 2025 The study underscores the threat extreme heat poses to birds in tropical regions and helps explain why birds are dying even in remote and protected areas, typically considered havens of biodiversity. Lex Harvey, CNN Money, 13 Aug. 2025 Fishing has been seasonally banned in this area in order to protect biodiversity and maintain a healthy fish population, but driven by economic need, many local fishers defy these restrictions, continuing to fish in secret while enforcement remains difficult. Amber X. Chen, Smithsonian Magazine, 28 July 2025 The environmental benefits—think habitat, animal food source, and biodiversity—greatly outweigh the challenge of seven to 14 days of sneezing and sniffles. Megan Hughes, Better Homes & Gardens, 24 July 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 21 Aug. 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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