環かん境きょう保ほ護ご主しゅ義ぎ者しゃかんきょうほごしゅぎしゃMeanings1nounenvironmentalistA person who advocates for environmental protection; a somewhat formal term.彼かの女じょは熱ねっ心しんな環かん境きょう保ほ護ご主しゅ義ぎ者しゃです。She is a passionate environmentalist.