English abbreviations from hbt to hcas
- HBT (Heterojunction Bipolar Transistor)
- HBV (Hepatitis B Virus)
- HBX (Hubli Airport)
- HC (Hexachloroethane/zinc)
- h.c. (honoris causa (Latin, "for the sake of honour"))
- HCA (Howard County Airport)
- HCAL (HRCC Calliper (in Logs)(in Inches))
- HCAMS (Highland County Antique Machinery Show)
- HCAS (Hostile Casualty)