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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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Their aggressive dominance can disrupt local ecosystems by outcompeting native ladybug species, reducing biodiversity. Moná Thomas, PEOPLE, 27 Nov. 2025 Climate, biodiversity, and land degradation, long managed in separate silos, were finally treated as one system. Paul Polman, Time, 25 Nov. 2025 In August 2019, then-Indonesian President Joko Widodo said that the country’s capital would move to Nusantara, located 1,200 miles away in Borneo, which has some of the world’s highest levels of biodiversity. Jay Ganglani, NBC news, 25 Nov. 2025 Evening presentations cover culture, conservation challenges, and biodiversity. Natalie Preddie, Travel + Leisure, 24 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 5 Dec. 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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