from The Century Dictionary and Cyclopedia
- n. In organ-building, a duct which conducts the compressed air from the bellows to a wind-chest. See cut under organ.
Sorry, no etymologies found.
A is the wind-chest into which compressed atmospheric air has been introduced, either through the side or bottom, from the end of the wind-trunk B.
 In making excavations for laying the wind-trunk of the organ the exterior of this wall was laid bare and appeared extremely rough.