/ Dictionary / Index R red gum: Meaning and Definition of Find definitions for: red' gum' Pronunciation: [key] any of several trees of the genus Eucalyptus, esp. E. camaldulensis, having smooth, gray bark. the hard, reddish wood of this tree, used for making railroad ties, fence posts, etc. See(defs. 1, 2). red' gum' Pronunciation: [key] — Pathol. Pathol. strophulus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Red Guard red-handed Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language