noun, noun or participle which takes 'suru', transitive verb
visual examination; inspection
Medical term for examining a patient by looking, as opposed to palpation or auscultation. Also used as a suru-verb.
医師はまず患者を視診した。
The doctor first visually examined the patient.
視診だけで診断を下すのは難しい。
It is difficult to make a diagnosis based solely on visual inspection.