/ Dictionary / Index S Siberian ruby: Meaning and Definition of Find definitions for: Sibe'rian ru'by Pronunciation: [key] a red tourmaline used as a gem: not a true ruby. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Siberian mammoth Siberian squill Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language