zirconium
noun
zir·co·ni·um
ˌzər-ˈkō-nē-əm
: a steel-gray hard ductile metallic element with a high melting point that occurs widely in combined form (as in zircon), is highly resistant to corrosion, and is used especially in alloys and in refractories and ceramics see Chemical Elements Table
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Merriam-Webster unabridged
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