imipenem

im·i·pen·em

noun \ˌim-ə-ˈpen-əm\

Definition of IMIPENEM

: a semisynthetic beta-lactam C₁₂H₁₇N₃O₄S·H₂O that is derived from an antibiotic produced by a bacterium of the genus Streptomyces (S. cattleya) and is effective against gram-negative and gram-positive bacteria