n.1 a person who is concerned with or advocates the protection of the environment.
2 a person who considers that environment has the primary influence on the development of a person or group.
Derivatives:
environmentalism n.
n.1 a person who is concerned with or advocates the protection of the environment.
2 a person who considers that environment has the primary influence on the development of a person or group.
Derivatives:
environmentalism n.
Oxford English vocab. Оксфордский английский словарь. 2012