Zirconia Light

Zirconia Light, an intensely brilliant light, similar to the Drummond light, but differing from it chiefly in the employment of cones of zirconium instead of cylinders of lime; it has been superseded by the electric light.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Zionism * Zirconium
Zidon
Ziethen, Johann Joachim von
Zig
Zillerthal
Zimbabye
Zimmermann, Johan Georg von
Zindikites
Zinzendorf
Zion
Zionism
Zirconia Light
Zirconium
Zirknitz, Lake
Ziska, Johann
Zittau
Zlatoust
Zoar
Zöckler, Otto
Zodiac
Zodiacal Light
Zohar