| Acronym | Definition |
|---|
| HMBA➣Hexamethylene Bisacetamide (chemical compound) |
| HMBA➣Hoosier Mountain Bike Association (Indiana) |
| HMBA➣Hunter Mountain Bike Association (Australia) |
| HMBA➣Hotel Motel Brokers of America (now Hotel Brokers International) |
| HMBA➣High Molecular Weight Basic Allergen (immunology) |
| HMBA➣3-Hydroxy-2-Methylbutanoic Acid (urinary metabolite) |