lactescence

n. [ Cf. F. lactescence. ] 1. The state or quality of producing milk, or milklike juice; resemblance to milk; a milky color. [ 1913 Webster ]

This lactescence does commonly ensue when . . . fair water is suddenly poured upon the solution. Boyle. [ 1913 Webster ]

2. (Bot.) The latex of certain plants. See Latex. [ 1913 Webster ]