blowhole

• 名词，有两个主要含义：一是指鲸类（如鲸和海豚）头顶上用于呼吸的鼻孔或喷气孔；二是指用于排出气体或空气的孔口或通风孔。

A noun with two primary meanings: first, the spiracle or nostril opening located on the top of the head of cetaceans such as whales and dolphins, used for breathing; second, a hole or vent designed for the escape of gas or air.

1. Cetacean SpiracleB2formalscientific

   The nostril opening on the top of the head of whales, dolphins, and porpoises, used for breathing and expelling water vapor.

   鲸类喷气孔

   • The whale surfaced and shot a plume of water from its blowhole.
   • Dolphins have a single blowhole on top of their heads.
   • Scientists study the blowhole to analyze the health of cetaceans.

   同义词nostrilspiracle

2. Gas or Air VentB2formaltechnical

   An opening or hole designed to allow gas, air, or steam to escape from a confined space.

   排气孔

   • The volcano's blowhole released steam and gases into the atmosphere.
   • Engineers installed a blowhole in the pipeline to prevent pressure buildup.
   • The cave had a natural blowhole that emitted a cool breeze.

   同义词air holebreatherexhaustoutletvent