Governmental & Military Abbreviations and Acronyms

1. HDD
   Head Down Display
2. HDDR
   High-Density Digital Recorder
3. HDDV
   Heavy Duty Diesel Vehicle
4. HDDVD
   High Definition Dvd
5. HDE
   humanitarian use exemptions (CDRH)
6. HDF
   Hierarchical Data Format
7. HDF
   High frequency direction-finding station
8. HDG
   Heading
9. HDG SEL
   Heading Select
10. HDGCB
    Human Dimensions of Global Change (programme) (UNU, ISSC, and IFIAS)
11. HDGEC
    Human Dimensions of Global Environmental Change
12. HDHP
    High-deductible health plan
13. HDI
    Human Development Index (UNDP yardstick of human welfare)
14. HDI
    Help Desk Internal
15. HDI
    Human Development Institute
16. HDL
    Harry Diamond Laboratories
17. HDLC
    High-Level Data Link Control
18. HDLC
    High Level Data Link Control
19. HDLC
    High Level Data Link Communications
20. HDLC
    High Level Data Link Communication

Last updated: May 24, 2020 — Total entries: 74,797