NASA Abbreviations and Acronyms

1. EOC
   End of Contract
2. EOC
   Engine Order Capability
3. EOC
   Engine-out Capability
4. EOCM
   Electro-Optical Countermeasures
5. EOCR
   Engineering Order Control Record
6. EOD
   Estimated Ondock
7. EODB
   End of Data Block
8. EODRS
   Earth observation data retrieval system
9. EOF
   End of File
10. EOG
    Electroculogram
11. EOHT
    External Oxygen and Hydrogen Tanks
12. EOHT
    External Oxygen and Hydrogen Tank
13. EOI
    Earth Orbit Insertion
14. EOL
    End of Life
15. EOM
    Equations of Motion
16. EOMF
    End of Minor Frame
17. EONS
    Education Opportunities In Nasa Stem
18. EOP
    Experiments of Opportunity
19. EOP
    Emergency Oxygen Pack
20. EOPAP
    Earth and Ocean Physics Application Program

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