/ Dictionary / Index C cubiculum: Meaning and Definition of Find definitions for: cu•bic•u•lum Pronunciation: (ky-bik'yu-lum), [key] — pl. -la a burial chamber, as in catacombs. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cubic measure cubic zirconia Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language