bioregion

noun

bio·​re·​gion ˈbī-ō-ˌrē-jən 

: a region whose limits are naturally defined by topographic and biological features (such as mountain ranges and ecosystems)

bioregional

ˌbī-ō-ˈrēj-nəl 

-ˈrē-jə-nᵊl

adjective

Example Sentences

Recent Examples on the Web

Research has shown that government fire suppression policies, along with the displacement of Indigenous people who performed cultural burning, have contributed to denser vegetation in the Klamath bioregion. —Hayley Smith, Los Angeles Times, 6 Aug. 2022

Research has shown that vegetation in the Klamath bioregion has grown denser due to government fire suppression policies and the displacement of Indigenous people who performed cultural burning. —Tribune News Service, oregonlive, 2 Aug. 2022

Part of the Cascadia bioregion, the sound teems with countless species of animals and plants. —Clarissa Dawes, National Geographic, 11 Oct. 2020

Other potential bids from Cascadia (a bioregion in the Pacific Northwest) and Tokyo were put off until 2022 to secure funding; while Blacktown, Sydney in Australia was mooted as a potential host at an early stage of the process. —SI.com, 20 Aug. 2019

PCBs have been found the world over—from the bed of the Hudson River to the fat of polar bears roaming the high Arctic—but never before in the creatures of the extreme deep, a bioregion about which science knows relatively little. —Rebecca Altman, The Atlantic, 4 Oct. 2017

Saint Francis (San Francisco) – the namesake of our bioregion – is the patron saint of animals and the environment. —Peter Drekmeier, The Mercury News, 16 Feb. 2017

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Word History

First Known Use

1945, in the meaning defined above