IPA: /prəˈdroʊm/
KK: /prəˈdroʊm/
A sign or symptom that appears before the main symptoms of a disease, indicating that it may be starting.
The patient experienced a prodrome of headaches and fatigue before the flu fully developed.
Prodrome → It is formed from "pro-" (meaning before) and "dromos" (meaning running or course). The word refers to a symptom or sign that occurs before the onset of a disease, indicating a course that is about to run its path.
Think of 'before' ('pro-') something 'running' ('dromos') — that's why prodrome refers to signs that appear before a disease starts.