bioregion
/ˈbaɪoʊˌridʒən/
noun
- A geographic area defined by natural features like watersheds, climate, and ecosystems, rather than by political boundaries.
- The Pacific Northwest is a bioregion known for its temperate rainforests and salmon runs.
- Our school project mapped the local bioregion, including rivers, forests, and wildlife corridors.
- Environmentalists argue that managing water resources by bioregion is more effective than by state lines.