Answer:In my own word I think means like type of special test I hope this helps
Step-by-step explanation:
Diagnostics-of, relating to, or used in diagnosis. a diagnostic tool. : using the methods of or yielding a diagnosis. diagnostic tests. : serving to distinguish or identify.diagnosis, the process of determining the nature of a disease or disorder and distinguishing it from other possible conditions. The term comes from the Greek gnosis, meaning knowledge. magnetic resonance imaging.