sulbactam
noun
sul·bac·tam
| \ səl-ˈbak-ˌtam
, -təm
\
, -təm
\
Medical Definition of sulbactam
: a beta-lactamase inhibitor that is usually administered in the form of its sodium salt C8H10NNaO5S in combination with a beta-lactam antibiotic (as ampicillin)