what is eco

The term "eco" has multiple meanings depending on the context. It can be a prefix used to denote ecology or environment in the formation of compounds, such as ecosystem or ecotourism. It can also refer to a mode in a car that is designed to improve fuel economy as you drive, known as eco mode. Additionally, "eco" can be used as a short form of ecology. In the context of engineering, an ECO or Engineering Change Order is a document that specifies either new product design details or proposed changes to existing products.