/ Dictionary / Index S shamrock: Meaning and Definition of Find definitions for: sham•rock Pronunciation: (sham'rok), [key] — n. any of several trifoliate plants, as the wood sorrel, Oxalis acetosella, or a small, pink-flowered clover, Trifolium repens minus, but esp. Trifolium procumbens, a small, yellow-flowered clover: the national emblem of Ireland. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: shamrock (Thesaurus) shampoo shamrock-pea Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language