diagnostic
UK: ˌdaɪəɡˈnɒstɪk | US: ˌdaɪəɡˈnɑːstɪk
adj. relating to the identification of a disease or condition
n. a distinctive symptom or characteristic used in diagnosis
adj. serving to analyze or identify the nature of a problem
The word "diagnostic" originates from Greek, combining "dia-" (through) and "gnosis" (knowledge). The root "gnos" (to know) appears in many English words (e.g., "prognosis," "agnostic"). The suffix "-tic" converts the noun into an adjective. Historically, it referred to discerning diseases through symptoms, later expanding to general problem-solving contexts.
The doctor used diagnostic tools to identify the illness.
High fever is a diagnostic indicator of infection.
The software includes diagnostic features to troubleshoot errors.
Her diagnostic skills helped solve the technical issue quickly.
Diagnostic tests confirmed the patient’s condition.