Anchored FLOAT is a term used to describe a BUOY that is attached to the seabed with a chain or cable. It is used to mark a specific location in the water, such as a navigation channel, and can also be used to measure water depth or to support other equipment. The term is made up of two words, 'ANCHORED' and 'FLOAT', which together refer to the BUOY's ability to remain in one place while still floating on the surface of the water.