hyperkeratosis
hy per ker a to sis |ˌhīpərˌkerəˈtōsis ˌhaɪpərˌkɛrəˈtoʊsɪs | ▶noun Medicine abnormal thickening of the outer layer of the skin.
hyperkeratosis |ˌhʌɪpəkɛrəˈtəʊsɪs | ▶noun [ mass noun ] Medicine abnormal thickening of the outer layer of the skin.