air passage

noun

1. a space occupied or traversed by air.
2. travel by air.
3. accommodations for an air trip:

   to book air passage for Hong Kong.

Word History and Origins

Origin of air passage¹

First recorded in 1830–40

Example Sentences

Finally, the fragile complexity hidden inside the human body — from the intricate webs of blood vessels to the gracefully branching air passages of the lungs to the delicate yet sturdy structure of bone — was there for all to see.

From Science News

In the secondary system A is a cold-air passage, T a butterfly valve and J a gasoline jet discharging into the cold-air passage.

From Project Gutenberg

Each side of each137 flat water cell abuts on an air passage.

From Project Gutenberg

So much water can flow out that an air passage is left at a, and the pipe is not sealed.

From Project Gutenberg

Even every air passage running through its body shed its parchment lining.

From Project Gutenberg

Undercast, un′dėr-kast, n. an air-passage crossing a road in a mine by means of an air-tight box or channel beneath it.

From Project Gutenberg