conservationist
n. countablen. a person who works to protect and save nature, like animals, forests, and clean water. They want to make sure these things stay healthy for the future.
n. a person who advocates for or practices the protection and preservation of natural resources and wildlife. Often involved in environmental science or policy to prevent extinction and habitat loss.
The conservationist spent years protecting the local bird population.
A dedicated conservationist recently started a campaign to stop the construction of a dam that would destroy the river's ecosystem.
While some critics argue for economic development, the conservationist maintains that preserving the rainforest is the only way to ensure long-term biodiversity and carbon stability for the region.
From conservation + -ist.