The Collaborative International Dictionary
Lactescence
Lactescence \Lac*tes"cence\, n. [Cf. F. lactescence.]
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The state or quality of producing milk, or milklike juice; resemblance to milk; a milky color.
This lactescence does commonly ensue when . . . fair water is suddenly poured upon the solution.
--Boyle. (Bot.) The latex of certain plants. See Latex.
Wiktionary
lactescence
n. 1 The state or quality of producing milk, or milky sap. 2 Resemblance to milk; a milky colour. 3 (context botany English) The latex of certain plants.