/ Dictionary / Index D dwarf sumac: Meaning and Definition of Find definitions for: dwarf' su'mac Pronunciation: [key] a shrub or small tree, Rhus copallina, of the cashew family, native to the eastern U.S., having shiny, pinnate leaves, greenish flowers, and clusters of red, berrylike fruit. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dwarf star dwarves Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language