abiotic

This term is primarily used in ecology and geochemistry to distinguish the physical environment from the biological community. It describes the backdrop of an ecosystem, such as sunlight, soil chemistry, and temperature, which dictates where specific life forms can survive. In a chemical or geological context, it refers to processes that occur without the intervention of life. This is often used when discussing the origin of organic molecules in space or the early Earth, emphasizing a purely chemical synthesis rather than a biological one.