/ Dictionary / Index D ductwork: Meaning and Definition of Find definitions for: duct•work Pronunciation: (dukt'wûrk"), [key] — n. a system of ducts used for a particular purpose, as in a ventilation or heating system. the pipes, vents, etc., belonging to such a system. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ductus arteriosis dud Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language