conservationist Syllabification: (con·ser·va·tion·ist)Pronunciation: /ˌkänsərˈvāSHənist/Translate conservationist | into French | into German | into Italian | into Spanish Definition of conservationist noun a person who advocates or acts for the protection and preservation of the environment and wildlife. conservationist in other Oxford dictionaries Definition of conservationist in the British & World English dictionary