/ Dictionary / Index C Clackmannan: Meaning and Definition of Find definitions for: Clack•man•nan Pronunciation: (klak-man'un), [key] — n. a historic county in central Scotland. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. clackers clack valve Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language