NASA Abbreviations and Acronyms

1. HNCO
   High-Precision Numerical-Controlled Oscillator
2. HNDLER
   Handler
3. HNGR
   Hangar
4. HO
   Handover
5. HO
   hydrogen-oxygen
6. HOB
   High-Order Bit
7. HOB
   High-Order Byte
8. HOFCO
   Horizontal Functional Checkout
9. HOL
   Higher Order Language
10. HOLAB
    Holographic Laboratory Brassboard
11. HOLC
    High-Order Language Computer
12. HOLR
    Monitor
13. HOLS
    Holidays
14. HOMS
    Hubble Optical Mechanical Simulator
15. HON
    Honeywell
16. HOPKINS
    Johns Hopkins University
17. HOR
    Horizon
18. HORI
    Horizon
19. HORIZ
    Horizon
20. HORZ
    Horizon

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