1. in a manner originating or developing from outside; from an external source or cause
Usage: commonly used in scientific, medical, and economic contexts
2. in biology and medicine, by introduction from outside the organism or system
Usage: technical; used in medical and biological research

Examples

• The disease spread exogenously through contaminated water supplies.
• The hormone was administered exogenously rather than allowing the body to produce it naturally.
• Economic growth was driven exogenously by foreign investment.
• The infection entered the wound exogenously during surgery.
• Researchers introduced the gene exogenously into the plant cells.
• Market shocks affected the economy exogenously, beyond the control of policymakers.