scan1/skæn; skæn/v [T] scanned , scanning 1 to examine an area carefully, because you are looking for a particular person or thing 细查﹐审视: scan sth for sth Lookouts were scanning the sky for enemy planes. 瞭望员监视上空﹐仔细搜寻敌机的踪影。2 also 又作 scan through to read something quickly 浏览﹐快读: I scanned through the report on the plane. 我在飞机上把报告浏览了一下。see box at见 READ1 方框3 if a machine scans something, it produces a picture of what is inside it 扫描: All luggage has to be scanned at the airport. 所有行李在机场都必须接受扫描检查。4 to copy a picture or piece of writing onto a computer by putting it into a machine attached to the computer〔电脑〕扫描〔文件或图片〕: You can scan the photos onto your PC. 你可以把这些照片扫描进自己的个人电脑里。
scan2n [C] a medical test in which a machine produces a picture of the inside of your body〔医学上的〕扫描检查: a brain scan 脑部扫描