- a temporary buoy having a staff for carrying a flag or light.
Origin of dan buoy
First recorded in 1680–90; origin uncertain
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for dan buoy
At the same moment a dan-buoy splashed overboard to mark the position of the floating mine.Submarine Warfare of To-day
Charles W. Domville-Fife