air pipe (part of speech: noun)
- As Billy leaped he had dug his fingers into the fellow's windpipe to choke any outcry, and when Lathrop seized him by the legs he toppled over like a felled ox without uttering a sound. - "The Boy Aviators in Africa", Captain Wilbur Lawton.
- First it was her arms that wound themselves about my neck, long, sinuous, and supple as the tentacles of some vile monster; then, as I struggled, her thumbs were on my windpipe like pads of steel. - "Dead Men Tell No Tales", E. W. Hornung.
- The pirate's hissing, " Die, cursed thern," was half choked in his windpipe by my clutching fingers. - "The Gods of Mars", Edgar Rice Burroughs.