Home/pyroninepyronine/pahy-ruh-neen/US // ˈpaɪ rəˌnin //吡咯尼,黄嘌呤,吡咯啉,吡喃酮Definitionsn.名词 noun1 Histology.: a xanthine dye used for detecting the presence of RNA.Level 4Browse all words →