Dictionary
duct•work
Pronunciation: (dukt'wûrk"), [key]—
n.
1. a system of ducts used for a particular purpose, as in a ventilation or heating system.
2. the pipes, vents, etc., belonging to such a system.
Also,ducting.Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.