Definition of milkstone

  1. 1a :  a stone (as galactite) believed to increase milk secretion b :  any of various white stones (as a flint pebble)

  2. 2 :  a hard body that forms in the bovine udder

  3. 3 :  a hard deposit of milk residues that accumulates on imperfectly cleansed dairy utensils and serves as a substrate for bacteria and contributes off-flavors to milk

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