/ Dictionary / Index H holm oak: Meaning and Definition of Find definitions for: holm' oak" Pronunciation: [key] an evergreen oak, Quercus ilex, of southern Europe, having foliage resembling that of the holly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. holmium holo- Related Content Daily Word Quiz: cur Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language