zr


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Zr,

symbol for the element zirconiumzirconium
, metallic chemical element; symbol Zr; at. no. 40; at. wt. 91.224; m.p. about 1,852°C;; b.p. 4,377°C;; sp. gr. 6.5 at 20°C;; valence +2, +3, or +4.

Zirconium is a very strong, malleable, ductile, lustrous silver-gray metal.
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Zr

(chemistry)

zr

(networking)
The old country code for Zaire.

"cd" is now used instead, since Zaire changed its name to the Democratic Republic of the Congo.