释义 |
ura·cil \ˈyu̇rəˌsil\ noun (-s) Etymology: International Scientific Vocabulary ur- (I) + acetic + -il : a crystalline heterocyclic compound C4H4N2O2 that is capable of salt formation with sodium hydroxide and is obtained by hydrolysis of ribonucleic acid or by reaction of urea wih ethyl formyl-acetate; 2,4-dihydroxy-pyrimidine; also : any of various derivatives of this compound — compare thymine |