nun buoy

noun

Definition of nun buoy

: a red metal buoy made of two cones joined at the base and usually marking the starboard side of a channel approached from the sea

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“Nun buoy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nun%20buoy. Accessed 22 Oct. 2020.

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