/ ˈdaɪəgnəʊz; -ˈnəʊz; NAmE ˌdaɪəgˈnoʊs/ verb
diagnose sb (as / with) (sth) | diagnose sth (as sth) to say exactly what an illness or the cause of a problem is :
[ vn ]
The test is used to diagnose a variety of diseases.
The illness was diagnosed as cancer.
He has recently been diagnosed with angina.
[ vn - n ]
He was diagnosed (as) a diabetic when he was 64.
[also v , vn - adj ]
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WORD ORIGIN
mid 19th cent.: back-formation from diagnosis .