The phrase "natural process" refers to actions or events that occur in nature without any human intervention. It means things that happen on their own, such as the growth of plants, the weather changing, or animals being born. Full definition
The nature of these materials results in natural processes of transformation and decay, often with unpredictable results. (lehmannmaupin.com)
Free radicals are created by natural processes in the body in addition to outside pollutants, so our cells are always in need of antioxidants like glutathione to maintain optimal health. (mindbodygreen.com)
It also enables the building and its inhabitants to participate in natural processes in ways that allow an ongoing celebration of the rich relationship between human creativity and the abundance of the nature. (mcdonough.com)