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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
According to the California Department of Fish and Wildlife, rattlesnakes play an important role in maintaining biodiversity and are typically not aggressive, though bites can occur if the animals feel threatened. Staff Author, PEOPLE, 2 May 2026 Meanwhile, the unceasing churn of clothing, footwear and accessories depletes soils, poisons the water, pollutes the air, drives deforestation, accelerates biodiversity loss and generates runaway planet-warming emissions that undermine brands’ lofty environmental ambitions. Jasmin Malik Chua, Footwear News, 1 May 2026 The new woodland space is part of an effort to supply kids their own space to appreciate the biodiversity (and shade) of a native oak habitat. Pedro Moura, Los Angeles Times, 1 May 2026 In his new book, Levine argues that those styles can in fact emerge from normal biodiversity, just like many other traits. Faith Hill, The Atlantic, 1 May 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

Browse Nearby Words

Podcast

Cite this Entry

“Biodiversity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biodiversity. Accessed 5 May. 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

More from Merriam-Webster on biodiversity

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster