A buoy located at a designated geographical position to serve as a navigation mark.
The term new buoy refers to a buoy placed at a newly designated geographical position.
The term clean buoy refers to a buoy in good condition that is used as a replacement.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM