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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. )

Explanation

When you have a many different plants and animals living in one place, you have biodiversity. The Amazon rain forest is rich in biodiversity. Biodiversity is a shortened form of two words: biological diversity. Biological refers to the study of life forms; diversity means "many" and "different." Construction, pollution, and climate change threaten many different species of plants and animals — these developments threaten biodiversity. Scientists know that the earth's health is related to biodiversity, and one of the main missions of the environmental movement is preserving biodiversity.

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Vocabulary lists containing biodiversity

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.

See Examples For:

It also highlights the direct connection between biodiversity research and conservation.

From Science Daily Aug. 30, 2026

But soil biodiversity is declining around the world, threatening agriculture, food security and the ability of ecosystems to function properly.

From Science Daily Aug. 28, 2026

But it also noted the "significant resource and policy questions they raise", including electricity demand, grid capacity, water use, land requirements, biodiversity and impacts on local communities.

From BBC Aug. 27, 2026

It may also help scientists investigate whether changes in chromosome structure are connected to differences in gene regulation, development, or biodiversity.

From Science Daily Aug. 25, 2026

As we’ve seen, this means that a pasture holds a dozen or more types of plants—a real example of biodiversity.

From "The Omnivore's Dilemma" by Michael Pollan

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