A float; especially a floating object moored to the bottom, to mark a CHANNEL, anchor, SHOAL, ROCK, etc Some common types include: a nun or nut buoy is conical in shape; a can buoy is squat and cylindrical above water and conical below water; a spar buoy is a vertical, slender spar anchored at one end; a bell buoy, bearing a bell, runs mechanically or by the action of WAVES, usually marks SHOALS or ROCKS; a whistling buoy, similarly operated, marks SHOALS or channel entrances; a dan buoy carries a pole with a flag or light on it
a floating platform for navigational purposes or supporting scientific instruments that measure environmental conditions
bright-colored; a float attached by rope to the seabed to mark channels in a harbor or underwater hazards mark with a buoy keep afloat; "The life vest buoyed him up"
Navigational aid There are several types and colors of buoys of which the most numerous are: the black can (seen as a fuzzy black spot on the horizon) the red nun (seen as a fuzzy black spot on the horizon) the red or green day beacon(seen as a fuzzy black spot on the horizon), and the vertically striped black-and-white channel marker (seen as a fuzzy black spot on the horizon)
bright-colored; a float attached by rope to the seabed to mark channels in a harbor or underwater hazards
A distinctly shaped and marked float, sometimes carrying a signal or signals, anchored to mark a channel, anchorage, navigational hazard, etc , or to provide a mooring place away from shore (Stein 1973)
(pronounced bü-ē) a rounded cork shaped object that is usually made of styrofoam that can float Buoys are tied with rope to traps to mark where they are in the water Each fisherman has a particular colour scheme for their buoys so that they can distinguish whose is whose