ac·tiv·ist /ˈæktɪvɪst/ ●○○ noun [countableC]REBELLION/REVOLUTIONsomeone who works hard doing practical things to achieve social or political change 積極分子;活動家political/gay/animal rights etc activist 政治活動家/積極支持同性戀的人/動物權利支持者等
—activist adjectiveadj [only before noun]