icterusEnglishOxford New American Dictionaryicterus /ˈiktərəs, ˈɪktərəs / ▸ noun Medicine technical term for jaundice. – DERIVATIVES icteric /ikˈterik, ɪkˈtɛrɪk / adjective– ORIGIN early 18th century : via Latin from Greek ikteros. The Latin term denoted jaundice, also a yellowish-green bird (the sight of which was thought to cure jaundice).