This type of coma is usually reversible once the blood sugar is corrected. Oxygen deprivation: Oxygen is essential for brain function. Cardiac arrest causes a sudden cutoff of blood flow and oxygen to the brain, called hypoxia or anoxia.
The external power supply is the AC power adapter that converts household AC electricity voltages to the much lower DC voltages needed to charge a mobile phone's internal battery.
â¢ EXTERNAL-COMBUSTION ENGINE (noun). The noun EXTERNAL-COMBUSTION ENGINE has 1 sense: 1. a heat engine in which ignition occurs outside the chamber (cylinder or turbine) in which heat is converted to mechanical energy. Familiarity information: EXTERNAL-COMBUSTION ENGINE used as a noun is very rare. Dictionary entry details.