/ Dictionary / Index A air plant: Meaning and Definition of Find definitions for: air' plant" Pronunciation: [key] an epiphyte. Also calleda tropical plant, Kalanchoe pinnata, of the stonecrop family, having pale green flowers tinged with red and new plants sprouting at the leaf notches. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. airplane turn airplay Related Content Daily Word Quiz: confectionery Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language