/ Dictionary / Index I inferior vena cava: Meaning and Definition of Find definitions for: infe'rior ve'na ca'va. Pronunciation: [key] See underAlso called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. inferior planet infernal Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language