Definition of grackle

• n. - One of several American blackbirds, of the family Icteridae; as, the rusty grackle (Scolecophagus Carolinus); the boat-tailed grackle (see Boat-tail); the purple grackle (Quiscalus quiscula, or Q. versicolor). See Crow blackbird, under Crow.
• n. - An Asiatic bird of the genus Gracula. See Myna.