hyperkeratinization

noun
hy·​per·​ke·​ra·​ti·​ni·​za·​tion | \ -ˌker-ət-ə-nə-ˈzā-shən How to pronounce hyperkeratinization (audio) , -kə-ˌrat-ᵊn-ə- How to pronounce hyperkeratinization (audio) \

Medical Definition of hyperkeratinization