shamrock UK /ˈʃæm.ɹɒk/US /ˈʃæm.ɹɑk/noun 2forms 1phrases 1 noun2 •The trefoil leaf of any small clover, especially Trifolium repens, or such a leaf from a clover-like plant, commonly used as a symbol of Ireland.She wore a shamrock in honor of her Irish ancestry. •Any of several species of small clover-like plant species, with trefoil leaves, especially Trifolium repens.The fields were covered with shamrocks. formsshamrocks Phrases with shamrock wet the shamrockTo go for an alcoholic drink, especially as part of a victory celebration or on Saint Patrick's Day.
