/ Dictionary / Index O Office of Civil and Defense Mobilization: Meaning and Definition of Find definitions for: Of'fice of Civ'il and Defense' Mobiliza"tion Pronunciation: [key] the former division (1958–61) of the Executive Office of the President that administered all federal programs dealing with the defense by civilians of their homes, families, communities, etc., in the event of enemy attack. Abbr.: OCDM Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. office hours Office of Defense Transportation Related Content Daily Word Quiz: bibliophile Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language