Webster's Revised Unabridged Dictionary · 1913

Lactescent

Lactescent , adjective

[Latin lactescens, present participle of lactescere to turn to milk, incho. from lactere to be milky, from lac, lactis, milk: compare French lactescent.]

1.
Having a milky look; becoming milky. [Obsolete]
2.
(Botany) Producing milk or a milklike juice or fluid, as the milkweed. See Latex.