nun buoy

Thân thiện

A red nun buoy marks the channel entrance for passing boats.

Definition

1. Noun:
   • A type of navigational buoy: A "nun buoy" is a buoy, typically used in maritime navigation, that has a conical shape above the waterline. It is often used in a system with other buoy types (like can buoys) to mark the sides of a navigable channel.

Usage Examples

• Noun:
  • The sailors steered to starboard, keeping the red nun buoy on their right side.
  • A nun buoy marks the edge of the shipping lane.

Advanced Usage

• Channel Marking Systems: In the lateral system of buoyage (e.g., the U.S. Aids to Navigation System), a "nun buoy" is conventionally used to mark the starboard (right) side of a channel when entering from seaward, and is colored red. Its conical top distinguishes it from a "can buoy," which has a flat top and marks the port (left) side.

Variants and Related Words

• Buoy (n): A floating object anchored in water to mark a location, warn of danger, or indicate a navigational channel.
• Can buoy (n): A buoy with a cylindrical (can-like) shape above the waterline, often used to mark the port side of a channel.
• Navigational aid (n): A device or structure that assists in the safe navigation of a vessel.

Synonyms

• Conical buoy: A direct descriptive synonym.
• Channel marker: A general term for buoys marking channels, which includes nun buoys.

Related Phrases

• Red, right, returning: A common mnemonic phrase in U.S. navigation meaning keep red buoys (like nun buoys) on your starboard (right) side when "returning" from sea (i.e., entering a harbor or going upstream).

Học thuật

Noun

1. a buoy resembling a cone

Từ đồng nghĩa

• conical buoy
• nun