/ Dictionary / Index D ductule: Meaning and Definition of Find definitions for: duc•tule Pronunciation: (duk'tl, -tyl), [key] — n. Anat., Zool. a small duct. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ductule (Thesaurus) duct tape ductus arteriosis Related Content Daily Word Quiz: hale Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language