IPA: //ˌhaɪpəˈθɜrmiə//
KK: /haɪpəˈθɜrmiə/
A medical condition where the body temperature drops to a dangerously low level, which can be life-threatening.
After falling into the icy water, he suffered from hypothermia and needed immediate medical attention.
Hypothermia is formed from "hypo-" (meaning under or below) and "thermia" (from Greek "thermē", meaning heat). The word describes a condition where the body temperature is below the normal level, indicating a lack of heat.
Think of 'hypo-' meaning 'under' and 'thermia' relating to 'heat' — this helps you remember that hypothermia is a state of having too little heat.