What is the meaning of Air pipe?

A pipe for the passage of air; especially a ventilating pipe.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). air pipe. Retrieved September 21, 2026, from http://smartdefine.org/air_pipe/definitions/1971980
ChicagoWebster's. 2011. "air pipe" http://smartdefine.org/air_pipe/definitions/1971980 (accessed September 21, 2026).
HarvardWebster's 2011, air pipe, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/air_pipe/definitions/1971980>.
MLAWebster's. "air pipe" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/air_pipe/definitions/1971980>