life cycle

This term describes a closed loop of development and renewal. In biological contexts, it emphasizes the physiological transformations and reproductive stages of a species, often focusing on the transition from juvenile to adult forms.

In business and engineering, the term shifts toward a linear progression of utility. It tracks the lifespan of a commercial product or a technical system, focusing on the transition from research and development to obsolescence. While the biological sense implies a natural, repeating circle, the industrial sense often describes a finite trajectory toward retirement.