ZIRCONIUM

zirconium, Zr, atomic number

(noun) a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon

Source: WordNet® 3.1

Etymology

Noun

zirconium (countable and uncountable, plural zirconiums)

A chemical element (symbol Zr) with an atomic number of 40, a strong, lustrous, grey-white transition metal mainly used as a refractory and opacifier.

Source: Wiktionary

Zir*co"ni*um, n. Etym: [NL.] (Chem.)

Definition: A rare element of the carbon-silicon group, intermediate between the metals and nonmetals, obtained from the mineral zircon as a dark sooty powder, or as a gray metallic crystalline substance. Symbol Zr. Atomic weight, 90.4.

Source: Webster’s Unabridged Dictionary 1913 Edition

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