NASA Abbreviations and Acronyms

1. UMBC
   Umbilical Cord Cable
2. UMO
   Unmanned Orbital
3. UMU
   Extravehicular Mobility Unit
4. UNARS
   Upper Atmosphere Research Satellite
5. UNBAL
   Unbalance
6. UNDK
   Undock
7. UNDLD
   Underload
8. UNDV
   Undervoltage
9. UNLCH
   Unlatch
10. UNLK
    Unlock
11. UOCB
    University of California At Berkeley
12. UOFA
    University of Arizona
13. UOI
    Unit of Issue
14. UOM
    Unit of Measure
15. UP
    Upper
16. UP
    Uplink
17. UP
    Microprocessor
18. UP
    Upright
19. UPD
    Update
20. UPDT
    Update

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