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

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Human habits need to change if Naperville is going to protect the soil and the Earth that future generations and biodiversity depend on. Naperville Sun, Chicago Tribune, 3 Apr. 2026 The previous version of BCI’s P&C covered soil health, biodiversity and natural habitats, water, pesticides and fertilizer use, along with livestock when relevant. Jennifer Bringle, Footwear News, 2 Apr. 2026 Furthermore, the area is at even greater risk of biodiversity loss thanks to potential plans to divert the river upstream to irrigate crops during the dry season. Andrew Paul, Popular Science, 2 Apr. 2026 Sensory receptors act as evolutionary hotspots that can either preserve recognition among members of the same species, or limit interspecies mating, playing a foundational role in Earth’s biodiversity. Jacek Krywko, ArsTechnica, 2 Apr. 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 4 Apr. 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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