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biodiversity

American  
[bahy-oh-di-vur-si-tee, ‑dahy‑] / ˌbaɪ oʊ dɪˈvɜr sɪ ti, ‑daɪ‑ /

noun

  1. biological diversity among and within plant and animal species in an environment.

    Coral reefs are not just havens for marine biodiversity, they also underpin the economies of many coastal communities.

    Spiraling extinctions will continue diminishing biodiversity for hundreds of years.


biodiversity British  
/ ˌbaɪəʊdaɪˈvɜːsɪtɪ /

noun

  1. the existence of a wide variety of plant and animal species in their natural environments, which is the aim of conservationists concerned about the indiscriminate destruction of rainforests and other habitats

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

biodiversity Scientific  
/ bī′ō-dĭ-vûrsĭ-tē /
  1. The number, variety, and genetic variation of different organisms found within a specified geographic region.


biodiversity Cultural  
  1. A term that describes the number of different species that live within a particular ecosystem.


Discover More

The preservation of biodiversity is considered by environmentalists to be a major goal of environmental policy.

Etymology

Origin of biodiversity

An Americanism first recorded in 1985–90; bio(logical) ( def. ) + diversity ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Litchfield said residents could also contribute to Guernsey's biodiversity by helping to get rid of invasive non-native species, like stinking onions and wild leek.

From BBC • Apr. 3, 2026

"Unsustainable harvesting - particularly the removal of queen ants - can lead to colony collapse, disrupting ecosystems and threatening biodiversity," he told the BBC.

From BBC • Mar. 28, 2026

Food production plays a major role in environmental issues, including greenhouse gas emissions and biodiversity loss.

From Science Daily • Mar. 23, 2026

Each garden in the self-guided tour uses at least 60% California native plants, demonstrating how these gardens protect local biodiversity.

From Los Angeles Times • Mar. 18, 2026

The other kids in the class fidgeted, and even Mr. Roberts stopped every so often to dab at his forehead with an off-white handkerchief before continuing to lecture the disinterested, overheated students about biodiversity.

From "Anger Is a Gift" by Mark Oshiro