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Meaning of trimethoprim

tri•meth•o•prim

Pronunciation: (trī-meth'u-prim), [key]
— n. Pharm.
  1. a synthetic crystalline compound, CHNO, usually combined with a sulfonamide as an antibiotic preparation in the treatment of urinary tract infections and pneumocystis pneumonia.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.