What does ZR stand for?

Area Control Center - ICAO designator (ICDA)

Freezing Rain - Meterology (BARN)

Rigid Airship - Navy symbol

Star Airways - ICAO designator (AD)

Zaire - ANSI two-letter standard code (CNC)

Zaire - NCIC country-territory code (NCIC)

Zenith Radio (SAUS)

Zentralrat - Central Board - German

Zeppelin, Rigid (SAUS)

Zero (SAUS)

Zero Coupon Issue (Security) - In bond listings of newspapers

Zimmerman Registry - An association (EA)

Zona Reticularis - Of adrenal cortex - Anatomy

Zone of Responsibility

Zone Refined

Zoological Record Online - Bio Sciences Information Service - Information service or system (IID)

Zircon (SAUS)

Zirconium - Chemical element