ピリジンMeanings1nounpyridinechemistryA basic heterocyclic organic compound with the chemical formula C₅H₅N. Used as a solvent and in the synthesis of various chemicals.ピリジンは有ゆう機き合ごう成せいでよく使つかわれる溶よう媒ばいです。Pyridine is a solvent often used in organic synthesis.