diagnosing
v.v. to identify a medical condition or the cause of a problem by looking at the signs. You do this when you want to find out exactly why something is not working correctly.
v. identifying the nature of an illness or other problem by examination of the symptoms. Often used in medical, technical, or mechanical contexts to describe the process of finding a root cause.
The doctor is diagnosing the patient's illness.
After running several tests, the mechanic spent the afternoon diagnosing the strange noise coming from the engine.
Accurately diagnosing rare genetic disorders requires a combination of advanced laboratory screening and a careful review of the patient's family medical history over several generations.
The present participle of 'diagnose'; functions as a transitive verb taking a direct object or as a gerund.
diagnosing about the problemdiagnosing the problemThe verb is transitive and does not require the preposition 'about' before the object.