conservationist
US /ˌkɑːn.sɚˈveɪ.ʃən.ɪst/
UK /ˌkɑːn.sɚˈveɪ.ʃən.ɪst/

1.
conservacionista, ambientalista
a person who advocates or acts for the protection and preservation of the environment and wildlife.
:
•
The renowned conservationist spoke about the importance of protecting endangered species.
O renomado conservacionista falou sobre a importância de proteger espécies ameaçadas.
•
She decided to become a conservationist after witnessing the destruction of the rainforest.
Ela decidiu se tornar uma conservacionista depois de testemunhar a destruição da floresta tropical.