scan

scan
(scanned, scanning)
[with obj.]

look at all parts of (something) carefully in order to detect some feature
细看，审视
he raised his binoculars to scan the coast.
他举起望远镜仔细观察海岸。
■look quickly but not very thoroughly through (a document or other text) in order to identify relevant information
粗略看，浏览
we scan the papers for news from the trouble spots.
我们浏览报纸寻找动荡地区的新闻。
[no obj.]I scanned through the reference materials.
我浏览了一遍参考资料。
■cause (a surface, object, or part of the body) to be traversed by a detector or an electromagnetic beam
扫描检查（物体或身体部位等）
their brains are scanned so that researchers can monitor the progress of the disease.
对他们的大脑进行扫描，使研究人员可以对病程进行监控。
■[with obj. and adverbial]cause (a beam) to traverse across a surface or object
用（光束）扫描
we scanned the beam over a sector of 120°.
我们用光束扫描了120度的扇形区。
■resolve (a picture) into its elements of light and shade in a pre-arranged pattern for the purposes of television transmission
电视扫描
■convert (a document or picture) into digital form for storage or processing on a computer
计算机扫描
text and pictures can be scanned into the computer.
文章和图片可以扫描进电脑里。
analyse the metre of (a line of verse) by reading with the emphasis on its rhythm or by examining the pattern of feet or syllables
标出诗的格律；读出诗的韵律
■[no obj.](of verse) conform to metrical principles
（诗）符合格律

noun

an act of scanning someone or something
粗略一看，浏览
a quick scan of the sports page.
快速浏览体育版。
■a medical examination using a scanner
医疗扫描检查
a brain scan.
脑扫描。
■an image obtained by scanning or with a scanner
扫描图
you can't predict anything until he has seen the scan.
看见扫描图之前你不能作任何预测。

派生
scannable
adjective
语源

late Middle English (as a verb in sense 2): from Latin scandere 'climb' (in late Latin 'scan (verses'), by analogy with the raising and lowering of one's foot when marking rhythm. From 'analyse (metre') arose the senses 'estimate the correctness of' and 'examine minutely', which led to 'look at searchingly' (late 18th cent.)

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