biodiversity

noun

: biological diversity in an environment as indicated by numbers of different species of plants and animals

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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The books below will satisfy your bog witch cravings, while also reminding you of the real-world importance of bogs as bulwarks against climate change, cradles of biodiversity, and keepers of ancestral memory. — Literary Hub, 15 Oct. 2026 Combined with information collected by microphones, cameras, and a variety of other sensors, Aura gives companies that have installed hives a real-time picture of the biodiversity around their buildings. — Drew Robb, Time, 15 Oct. 2026 Growers qualified under requirements covering soil health, water use, synthetic inputs, water quality and biodiversity. — Alexandra Harrell, Footwear News, 15 Oct. 2026 Like, where are these hotspots of biodiversity, and are they being protected? — Quanta Magazine, 15 Oct. 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 20 Oct. 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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