<p><strong>Verb</strong></p><ul><li>(used with object) to determine the identity of (a disease, illness, etc.) by a medical examination: The doctor diagnosed the illness as influenza.</li><li>to ascertain the cause or nature of (a disorder, malfunction, problem, etc.) from the symptoms: The mechanic diagnosed the trouble that caused the engine knock.</li><li>to classify or determine on the basis of scientific examination.</li></ul><p><strong>End of Response</strong></p>