Pyrimethamine Definition
 pīrə-mĕthə-mēn, -mĭn 
    noun
  
 A potent folic acid antagonist, C12 H13 ClN4 , used as a prophylactic antimalarial agent against Plasmodium falciparum and in the treatment of toxoplasmosis.
 American Heritage 
Other Word Forms of Pyrimethamine
Noun
Singular:
 pyrimethaminePlural:
 pyrimethaminesOrigin of Pyrimethamine
pyrim(idine) eth(yl) amine
From American Heritage Dictionary of the English Language, 5th Edition
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