a. [f. THRUSH2 2 + -Y.] Pertaining to or affected with thrush (sense 2).
1831. [Youatt], Horse, xvi. 307. When the frog becomes diseased, the cleft penetrates even to the sensible horn within, and through this fissure the thrushy discharge proceeds. Ibid., 308. Turning out would be prejudicial rather than of benefit to thrushy feet.