Home › Words › P › pnpasepnpasepnpase means polynucleotide phosphorylase, an RNA-degrading protein.Among words judged in Lexicurio's Arena, pnpase ranks #33,536 of 42,749 for Qualifying.EtymologyFrom PNP + -ase.nounPolynucleotide phosphorylase, an RNA-degrading proteinPurine nucleoside phosphorylase, an enzyme involved in purine metabolismDefinitions & examples from Wiktionary (CC BY-SA 3.0).