ピラゾロンピラゾロンMeanings1nounpyrazoloneA heterocyclic compound used in pharmaceuticals and dyes; technical term in organic chemistry.ピラゾロン誘ゆう導どう体たいは抗こう炎えん症しょう薬やくとして研けん究きゅうされている。Pyrazolone derivatives are being studied as anti-inflammatory drugs.