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

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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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Still, proponents argue deep-sea mining may be less damaging than land mining, which contributes to massive habitat destruction, biodiversity loss, and toxic contamination of water sources. Jake Angelo, Fortune, 15 May 2026 Volunteers can join the hands-on community science adventure to explore the preserve and document its biodiversity. Abby Hamblin, San Diego Union-Tribune, 13 May 2026 Wildflowers are planted between vineyard rows to improve biodiversity and reduce water dependence. Rhonda Richford, Footwear News, 12 May 2026 Araújo’s team plans to continue monitoring microplastic contamination in tadpoles across the Amazon to better understand its impact on regional biodiversity. Ryan Brennan, Sacbee.com, 12 May 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 21 May. 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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