Lactescence \Lac*tes"cence\, 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]