/ˈdaɪəgnəʊz; US ˌdaɪəgˈnəʊs ||; ˌdaɪəgˈnos/verb [T] diagnose sth (as sth);diagnose sb as/with sth to find out and say exactly what illness a person has or what the cause of a problem is 诊断；判断（问题的原因）: His illness was diagnosed as bronchitis. 他的病诊断为支气管炎。I've been diagnosed as (a) diabetic/with diabetes. 我被诊断患了糖尿病。After a couple of minutes I diagnosed the trouble -- a flat battery. 几分钟后，我找出了毛病──电池用完了。