Definitions

1. noun

relating to or used for the identification or diagnosis of a disease or condition

“The diagnostic tools in the doctor’s office helped to identify the patient’s illness.”

2. adjective

relating to diagnosis, especially the process of identifying the cause of a problem or disease

“The diagnostic team worked tirelessly to find a solution to the complex problem.”

3. adverb

in a diagnostic manner or for the purpose of diagnosis

“The doctor examined the patient in a diagnostic manner, looking for any signs of illness.”