/ Dictionary / Index L laconicum: Meaning and Definition of Find definitions for: la•con•i•cum Pronunciation: (lu-kon'i-kum), [key] — pl. -ca the sudatorium of an ancient Roman bath. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. laconical laconism Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language