Definition of trimethoprim in English:

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Pronunciation: /trīˈmeTHəˌprim/


A synthetic antibiotic used to treat malaria and respiratory and urinary infections (usually in conjunction with a sulfonamide).
Example sentences
  • Medicines used are sulfonamide with or without trimethoprim, furadantin, ampicillin, or the fluoroquinolones.
  • For urinary tract infection, we examined resistance to ampicillin or amoxicillin and trimethoprim.
  • At the same time we would also audit the prescribing of trimethoprim for urinary tract infections and the investigations and second visits associated with its use.


1960s: from trimeth(yl) + o(xy-) + p(y)rim(idine).

For editors and proofreaders

Syllabification: tri·meth·o·prim

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