whistle buoy

Thân thiện

A whistle buoy bobs in the harbor entrance, marking the safe channel.

Definition

Noun: A whistle buoy is a type of navigational buoy equipped with a whistle that produces a sound when activated by the motion of the waves. It serves as an audible warning signal for mariners, especially in conditions of reduced visibility like fog.

Usage

The term is used specifically in maritime contexts to describe a sound signal aid to navigation. - The captain navigated carefully, guided by the distant sound of the whistle buoy marking the channel entrance. - In the thick fog, the only indication of the shoal was the mournful sound from the whistle buoy.

Advanced Usage

• "to mark a hazard with a whistle buoy": To use this specific type of buoy to indicate a dangerous area like a rock or shallow water.
  • The coast guard decided to mark the newly discovered wreck with a whistle buoy.

Variants and Related Words

• Bell buoy (n): A buoy equipped with a bell that rings with the wave motion.
• Gong buoy (n): A buoy equipped with one or more gongs struck by hammers.
• Sound buoy (n): A general term for buoys that emit an audible signal.

Synonyms

• Acoustic buoy: A more technical term for a buoy that produces sound.
• Sound signal buoy: A descriptive synonym emphasizing its function.

Related Phrases

• Aid to Navigation (ATON): The general category of devices, including whistle buoys, that assist in safe navigation.
• Fog signal: A broader term for any device, including buoys, that emits sound to warn ships in foggy conditions.

Học thuật

Noun

1. a buoy that makes a whistling noise

Từ đồng nghĩa

• whistling buoy