bacteremia Syllabification: (bac·te·re·mi·a)Pronunciation: /ˌbaktəˈrēmēə/ (British bacteraemia)Definition of bacteremia noun Medicine the presence of bacteria in the blood. Derivatives bacteremicPronunciation: /-mik/ adjective Origin: late 19th century: from bacterium + -emiabacteremia in other Oxford dictionaries Definition of bacteremia in the British & World English dictionary