/ Dictionary / Index C clampdown: Meaning and Definition of Find definitions for: clamp•down Pronunciation: (klamp'doun"), [key] — n. crackdown. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: clampdown (Thesaurus) clamp clamper Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language