n.
Pronunciation: tr ī - ' me-th ə - ˌ prim
Function: noun
Etymology: tri- + meth- + -prim (by shortening & alteration from pyrimidine )
Date: 1964
: a synthetic antibacterial and antimalarial drug C 14 H 18 N 4 O 3 used alone or in combination with sulfamethoxazole