/skæn; skæn/
v (-nn-)
1 Tn] look at every part of (sth) carefully; examine (sth) with great attention 细看（某物）的各部; 仔细检查（某物）
*He scanned the horizon, looking for land. 他细看天水相连的地方, 寻找陆地.
2 [Tn]
(a) (of a searchlight, etc) pass across (an area) （指探照灯等）扫掠（某处）
*The flashlight's beam scanned every corner of the room. 手电筒的光束扫遍屋内各个角落.
(b) (medical 医) obtain an image of (a body or part of the body) with a scanner 用扫描器扫描（身体或身体的部位）.
3 [Tn] glance at (eg a document) quickly but not very thoroughly 匆匆而粗略地看（如文件）
*She scanned the newspaper over breakfast. 她吃着早饭把报纸大略看了一遍.
4 (a) [Tn] analyse the metre of (a line of verse) by noting how it is stressed and how many syllables it has, as in `Mary / 5had a/`little/`lamb 划分（诗句）的音步（如`Mary/`had a/`little/`lamb.）
(b) [I] (of verse) have a proper metrical pattern （指诗句）符合韵律
*a line that does not scan 一行不合韵律的诗句
* The verses scan well. 这些诗句韵律严谨.
5 [Tn] (in television, etc) pass an electronic beam over (sth), esp so as to produce a picture on a screen （电视等）扫描.

n act of scanning (scan 2b) 扫描
*a `body scan, ie done by a scanner 全身扫描
* a `brain scan 脑扫描.

Discan is both a scale and a method in clinical psychology. As a scale, it is a type of ordered-metric scaling that yields a scale with internal reliability, and scale-points in excess of the number of initial anchors, more than would be the case with the Likert scale, though not as many as are achieved by the Analog scale.