1. originating or developing from within an organism, system, or process
Usage: scientific; medical
2. arising from internal causes or factors rather than external influences
Usage: economics; psychology

Examples

• The patient’s depression appeared to be endogenous rather than triggered by external events.
• Endogenous growth theory focuses on factors within an economy that drive development.
• Plants produce endogenous hormones that regulate their growth and development.
• The researcher studied endogenous rhythms in sleep patterns.
• Endogenous variables in the model are determined by other factors within the system.
• The body’s endogenous antioxidants help protect cells from damage.
• Economic fluctuations can be either endogenous or caused by external shocks.