ジルコニウムジルコニウムMeanings1nounzirconium (Zr)chemistryChemical element, atomic number 40. Used in alloys and nuclear reactors.ジルコニウムは耐たい食しょく性せいに優すぐれた金きん属ぞくです。Zirconium is a metal with excellent corrosion resistance.