spiracles

1.【动】(昆虫类的)呼吸孔,气门;(鲸类的)喷水孔

2.通气孔

1.a small vent in a lava flow that allows the escape of built-up gases

2.a small paired aperture along the side of the thorax or abdomen of an insect or spider through which air enters and leaves

3.a small gill slit or opening behind the eye area of some fishes such as skates and rays

4.a blowhole of a whale, dolphin, or similar ocean mammal