| Acronym | Definition |
|---|
| HCAR➣Hershey Center for Applied Research (Pennsylvania) |
| HCAR➣Howard County Association of Realtors (Columbia, MD) |
| HCAR➣Humboldt Community Access and Resource Center (San Rosa, CA) |
| HCAR➣Health Care Access Resolution (Universal Healthcare Action Network) |
| HCAR➣Handoff Call Attempt Rate |
| HCAR➣Human Constitutive Active Receptor |