The act of examining something systematically or converting physical documents into digital format. It can refer to visual examination, medical imaging, or digital conversion processes.
From Middle English 'scannen,' borrowed from Late Latin 'scandere' meaning 'to climb' or 'to scan verse.' The meaning evolved from analyzing poetic meter to any systematic examination, and in the 20th century expanded to include electronic and digital processes.
The word beautifully captures how technology mirrors human perception - just as our eyes 'scan' a room by moving systematically across it, electronic scanners recreate this process mechanically. The original poetic meaning of analyzing rhythm still influences how we describe the systematic nature of modern scanning.
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