From Longman Dictionary of Contemporary EnglishRelated topics: Environment & wasteenvironmentalisten‧vi‧ron‧men‧tal‧ist /ɪnˌvaɪrənˈmentəlɪst/●くろまる○しろまる○しろまるAWL noun [countable]SGEsomeone who is concerned about protecting the environmentExamples from the Corpusenvironmentalist• At first, two decades ago, environmentalistspredicted we would run out of certainraw materials.• In 1987, when an interim report was issued, scientists and environmentalists bitterly attacked its conclusions as misrepresenting the facts.• But the proposeddevelopment has angeredenvironmentalists who argue there's no need for more housing in Swindon.• The plans had been challenged by environmentalists on the grounds that genetechnology involved unknownsafetyrisks.• Another serious problem for environmentalists is the type of tree and forest planted.• They will have to choose between pretending to be friends of the farmer and lackeys of the environmentalist.• Republicans reacted bitterly to arrogance, real or imagined, by Democrats and their environmentalists.