/looh'keuh play"kee euh/ , n. Pathol.
a disorder of a mucous membrane characterized by one or more white patches, occurring most commonly on the cheek, tongue, vulva, or penis: often medically insignificant but sometimes becoming malignant.
Also, leucoplakia . Also called leukoplasia /looh'keuh play"zheuh, -zhee euh, -zee euh/ , leucoplasia .
[ 1880-85; leuko- LEUKO- + plak-, s. of pláx flat surface, taken as "tongue" + -ia -IA ]