What does ZR. stand for?

What does ZR. mean?

Zr	Zirconium Academic & Science » Chemistry
ZR	Zaire Regional » Countries
ZR	Zaire Internet » Domain Names
Zr.	Zijner International » Dutch
ZR	Zero Resistance Academic & Science » Electronics
ZR	Zhang Rice Miscellaneous » Food
ZR	Zero Rated Business » General
ZR	Zero Restriction Community » Law
ZR	Zero Restriction Governmental » Military
ZR	Zero Restriction Governmental » NASA
ZR	Zoological Registrar Business » Positions
ZR	Zen Rebirth Community » Religion
ZR	Zona de Resistencia International » Spanish
ZR	Zero Restrictions Governmental » Transportation
ZR	Zero Restriction Governmental » Transportation
ZR	Zero Restriction Governmental » United Nations
ZR	Zero Restriction Governmental » US Government
ZR	Zoological Registrar Medical » Veterinary