environmentalist Definition in the Cambridge English Dictionary
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Definition of “environmentalist” - English Dictionary

Definition of "environmentalist" - American English Dictionary

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environmentalistnoun [C]

 us   /ɪnˌvɑɪ·rənˈmen·təl·ɪst, -ˌvɑɪ·ərn-/
earth science a ​person who has a ​speciallystronginterest in or ​knowledge of the ​naturalenvironment, and who ​wants to ​preserve it and ​preventdamage to it: Environmentalists are ​working to ​improve the ​quality of ​ourlakes and ​rivers.
(Definition of environmentalist from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "environmentalist" - British English Dictionary

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environmentalistnoun [C]

uk   /ɪnˌvaɪ.rənˈmen.təl.ɪst/  us   /-ˌvaɪr.ənˈmen.t̬əl-/
C1 a ​person who is ​interested in or ​studies the ​environment and who ​tries to ​protect it from being ​damaged by ​humanactivities
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(Definition of environmentalist from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

Definition of "environmentalist" - Business English Dictionary

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environmentalistnoun [C]

uk   us   /ɪnˌvaɪərənˈmentəlɪst/ ENVIRONMENT
a ​person who ​studies the ​environment or believes that it must be ​protected from ​damage by ​humanactivities: Environmentalists would like to see ​even more ​ambitiousgoals to ​reduce greenhouse ​gasemissions. an environmentalist ​group/​movement
(Definition of environmentalist from the Cambridge Business English Dictionary © Cambridge University Press)
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