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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From the sprawling stone forts of early American history in the north, to the mangroves of the Everglades and protected reefs of Biscayne to the south, our state is a masterpiece of biodiversity and coastal wonder. Lulu Vilas, Sun Sentinel, 25 Aug. 2026 Gennaro Tomma is a freelance journalist who covers science, with a focus on the natural world, biodiversity, conservation, climate change, environmental and science-related policies, and more. Gennaro Tomma, Scientific American, 25 Aug. 2026 Aid by Trade introduced its Regenerative Cotton Standard in 2023 with the goal of promoting soil health and biodiversity, and the foundation said that program has expanded in India and Tanzania. Jennifer Bringle, Footwear News, 24 Aug. 2026 This project reminded my students and me that biodiversity monitoring by sampling DNA in the environment doesn’t just reveal what species are present. David Duvernell, The Conversation, 24 Aug. 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 28 Aug. 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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