n. 1.【动物；动物学】(昆虫类的)呼吸孔，气门；(鲸类的)喷水孔。 2.通气孔。 adj. -racular
a breathing orifice
Spiracles are openings on the surface of some animals that usually lead to respiratory systems.
例句与用法
1.
The transverse nerves pass to the spiracles of their segment . 横神经通往同体节的气门。
2.
The spiracles are guarded by bristles which aid in filtering dust and other foreign matter from the air before it enters the tracheae . 气门由刚毛保护，这种叫毛在空气进入气门以前，帮助过滤空气中的灰尘和其他异物。
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