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|(Zool.)||any Old World thrush of the genus Monticola, or Petrocossyphus; as, the European rock thrush (Monticola saxatilis), and the blue rock thrush of India (Monticola cyaneus), in which the male is blue throughout.|
See also: Rock
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.