NASA Abbreviations and Acronyms

1. ECF
   European Coordinating Facility
2. ECG
   Electrocardiograph
3. ECHEM
   Chemistry
4. ECI
   Earth Centered Inertia (inertials)
5. ECIO
   Experiment Computer Input/Output
6. ECK
   Emergency Communication Key
7. ECL
   Entry Closed Loop
8. ECLISS
   Environmental Control and Life Support System
9. ECLS
   Environmental Control and Life Support
10. ECLSS
    Environmental Control and Life Support System
11. ECN
    Engineering Change Notice
12. ECO
    Engine Cutoff
13. ECO
    Engine Combustion
14. ECOS
    Experiment Computer Operating System
15. ECP
    Engineering Change Proposal
16. ECP
    Engineering Change Program
17. ECP
    Engineering Control Proposal
18. ECRA
    Engineering Change Request Authorization
19. ECRC
    Engineering Contract Requirements Committee
20. ECRV
    Exponentially Corrected Random Variable

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