pyrimidine ribonucleotide biosynthetic process pyrimidine ribonucleotide salvage GO:0010138 biological_process The pathway by which pyrimidine bases or pyrimidine ribonucleosides from pyrimidine nucleotide breakdown are converted back to pyrimidine ribonucleotides. The salvage pathway is important where there is no de novo pyrimidine nucleotide biosynthesis. pyrimidine nucleotide salvage