| Abbreviation | Definition |
|---|---|
| HCVD | Hypertensive cardiovascular disease |
| HCW | Health Care Worker |
| HD | A Half Degree |
| HD | Hemodialysis |
| HD | Hip Dysplasia |
| HD | Hyperactive Disorder |
| HD | Huntington's Disease |
| HD | Hodgkin's Disease (lymphoma) |
| HD | High Dose |
| HD | Head of Department |
| HD | Hall Director |
| HD | Hydrogen Drain |
| HD | Horizontal Drain |
| HD | Highly Desirable |
| HD | Henry Draper Catalog Entry |
| HD | Heart Disease |
| HDA | Hydroxy Decanoic Acid |
| HDA | High Definition Audio |
| HDA | Housekeeping Data Acquisition |
| HDA | Housing Development Agency |
| HDA | Higher Duties Allowance |
| HDAS | Heavy- Duty Auxiliary Stand |
| HDB | Housing And Development Board |
| HDC | Hard Disk Controller |
| HDC | High Dose Chemotherapy |
| HDC | HYbrid Device Controller |
| HDC | Hasselblad Data Camera |
| HDCP | High-bandwidth Digital Content Protection |
| HDD | Hard Disk Drive |
| HDDR | High-Density Digital Recorder |
| HDDRISC | Heart Disease And Diabetes Risk Indicators In A Screened Cohort [study] |
| HDE | Henry Draper Extension |
| HDF | High Digestible Fibre |
| HDFC | Housing Development Finance Corporation |
| HDFC | Housing Development and Finance Corporation |
| HDFS | Human Development and Family Studies |
| HDH | Heart Disease History |
| HDHC | Hamilton District Health Council |
| HDHP | High Deductible Health Plan |
| HDI | Human Development Index |
| HDI | Host Defenses And Infection |
| HDK | Hardware Development Kit |
| HDL | High Density Lipoprotein |
| HDL | High Daily Level |
| HDL | Housing Development Loan |
| HDLC | High-level Data Link Control |
| HDLC | Historic District Landmarks Commission |
| HDM | Help Desk Manager |
| HDMI | High - Definition Multimedia Interface |
| HDN | Hemolytic Disease of Newborns |