1. absorbing heat from the surroundings during a chemical reaction or physical process
Usage: chemistry; physics
2. relating to animals that regulate their body temperature internally
Usage: biology

Examples

• The dissolution of ammonium nitrate in water is an endothermic process.
• When ice melts, it undergoes an endothermic phase change.
• The endothermic reaction caused the test tube to feel cold.
• Mammals are endothermic animals that maintain constant body temperature.
• Birds, being endothermic, can survive in cold climates.
• The endothermic nature of photosynthesis requires energy input from sunlight.
• Endothermic reactions have positive enthalpy changes.