en·ter·o·bac·te·ri·um 
(ĕn′tə-rō-băk-tîrē-əm)
(ĕn′tə-rō-băk-tîrē-əm)n. pl. en·ter·o·bac·te·ri·a (-tîrē-ə)
Any of various gram-negative, rod-shaped, often enteric bacteria of the family Enterobacteriaceae that includes some plant and animal pathogens, such as salmonella.