/ Dictionary / Index D defog: Meaning and Definition of Find definitions for: de•fog Pronunciation: (dē-fog', -fôg'), [key] — -fogged, -fog•ging. to remove the fog or moisture from (a car window, mirror, etc.). to make intelligible, specific, or obvious; clarify: In a lengthy interview the mayor defogged the issues in the transit strike. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: defog (Thesaurus) Defoe defogger Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language