Dictionary

trimethoprim

noun tri·meth·o·prim \trī-ˈme-thə-ˌprim\

Definition of TRIMETHOPRIM

:  a synthetic antibacterial and antimalarial drug C14H18N4O3 used alone or in combination with sulfamethoxazole

Origin of TRIMETHOPRIM

tri- + meth- + -prim (by shortening & alteration from pyrimidine)
First Known Use: 1964
Medical Dictionary

trimethoprim

noun tri·meth·o·prim \trī-ˈmeth-ə-ˌprim\

Medical Definition of TRIMETHOPRIM

:  a synthetic antibacterial drug C14H18N4O3 used alone especially to treat urinary tract infections and Pneumocystis carinii pneumonia and in combination with sulfamethoxazole to treat these as well as other infections (as shigellosis or acute otitis media)—see bactrim

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