leukokeratosis

noun
leu·​ko·​ker·​a·​to·​sis
variants: or chiefly British leucokeratosis \ -​ˌker-​ə-​ˈtō-​səs How to pronounce leucokeratosis (audio) \
plural leukokeratoses\ -​ˌsēz How to pronounce leukokeratoses (audio) \

Medical Definition of leukokeratosis

: severely keratinized or ulcerated leukoplakia