/ Dictionary / Index Y Yggdrasil: Meaning and Definition of Find definitions for: Ygg•dra•sil Pronunciation: (ig'dru-sil, yg'-), [key] — n. Scand. Myth. an evergreen ash tree, the three roots of which bind together Asgard, Midgard, and Niflheim. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: yggdrasil (Thesaurus) Yezo YHA Related Content Daily Word Quiz: drowsy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language