NASA Abbreviations and Acronyms

1. YTD
   Year To Date
2. ZCAP
   Oxide
3. ZERO-G
   Zero Gravity
4. ZG
   Zero Gravity
5. ZGSP
   Zero Gyro Sun Point
6. ZLV
   Z Local Vertical
7. ZO
   Impedance
8. ZOE
   Zone of Exclusion
9. ZOF
   Zone of Exclusion
10. ZSI
    Z Solar Inertial
11. a
    Analog
12. a
    Ampere
13. a/c
    Aircraft
14. A/E
    Architectural and Engineering
15. A/P
    Autopilot
16. A/P
    Airport
17. A/P
    Attitude and Pointing
18. A/R
    Automation and Robotics
19. A/R
    Assembly and Recycle
20. A/R
    autoland roll-out

Last updated: May 6, 2025 — Total entries: 14,020