/ Dictionary / Index M mistletoe cactus: Meaning and Definition of Find definitions for: mis'tletoe cac"tus Pronunciation: [key] a tropical, branched cactus, Rhipsalis baccifera (or cassutha), having cylindrical stems and mistletoelike fruit. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mistletoe mistook Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language