/ Dictionary / Index T tuber fern: Meaning and Definition of Find definitions for: tu'ber fern" Pronunciation: [key] a tropical, erect fern, Nephrolepis cordifolia, having sharply toothed and numerously segmented fronds. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tuberculum tuberose Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language