typhoid Syllabification: (ty·phoid)Pronunciation: /ˈtīˌfoid/ (also typhoid fever)Translate typhoid | into French | into German | into Italian Definition of typhoid noun an infectious bacterial fever with an eruption of red spots on the chest and abdomen and severe intestinal irritation. Typhoid is caused by the bacterium Salmonella typhi; Gram-negative rods Derivatives typhoidalPronunciation: /tīˈfoidl/ adjective Origin: early 19th century: from typhus + -oidtyphoid in other Oxford dictionaries Definition of typhoid in the British & World English dictionary