| Acronym | Definition |
|---|
| HSAB➣Hard and Soft Acids and Bases |
| HSAB➣Health and Science Advisory Board (Lake Worth, FL) |
| HSAB➣Heavy Stores Adapter Beam (for external munitions on USAF B-52H) |
| HSAB➣Head Side Airbag |
| HSAB➣High School and Beyond |
| HSAB➣Hellenic Scientists Association of Boston (Boston, MA) |