der ‧ ma ‧ ti ‧ tis /ˌdɜːməˈtaɪtəs, ˌdɜːməˈtaɪtɪs $ ˌdɜːr-/ BrE AmE noun [uncountable]
[ Date: 1800-1900 ; Language: Greek ; Origin: derma 'skin' ]
a disease of the skin that causes redness, swelling, and pain
der ‧ ma ‧ ti ‧ tis /ˌdɜːməˈtaɪtəs, ˌdɜːməˈtaɪtɪs $ ˌdɜːr-/ BrE AmE noun [uncountable]
[ Date: 1800-1900 ; Language: Greek ; Origin: derma 'skin' ]
a disease of the skin that causes redness, swelling, and pain
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012