IPA: /ˌɛk.sæn.θəˈmæt.ɪk/
KK: /ɛkˌsænθəˈmætɪk/
Relating to a rash or skin eruption that appears on the body, often as a symptom of a disease.
The doctor noted that the patient had an exanthematic rash, which indicated a possible viral infection.
Exanthematic → It is formed from "exanthem" (from Greek "exanthema", meaning a breaking out) and the suffix "-atic" (meaning pertaining to). The word "exanthematic" refers to conditions or diseases that are characterized by a breaking out of rashes or eruptions on the skin.
Think of 'exanthem' meaning a 'breaking out' — so 'exanthematic' describes something related to that skin eruption.