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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Predator species are crucial to the state’s ecological systems, keeping populations of prey animals like deer and elk from growing too large and boosting biodiversity. Sharon Bernstein, Sacbee.com, 28 Jan. 2026 Yet even under the best conditions, a growing body of evidence shows that the absolute decoupling of gross domestic product (GDP) from environmental degradation—growing the economy while simultaneously reducing resource use, biodiversity loss, waste, and pollution—is impossible. Olivier De Schutter, Time, 27 Jan. 2026 Rich in dynamic biodiversity, the park is the perfect place to escape the bustle of the city and soak up the stunning natural landscape. Condé Nast Traveler, 26 Jan. 2026 Extensive research shows how this combination of stressors represents one of the greatest threats to marine wildlife, potentially affecting biodiversity on a global scale. Rodrigo Tardin, The Conversation, 26 Jan. 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 3 Feb. 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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