| Acronym | Definition |
|---|
| RISA➣Racing Information Services Australia (thoroughbred racing industry) |
| RISA➣Regional Integrated Sciences and Assessments (US NOAA) |
| RISA➣Rapid Interactive Structural Analysis (structural engineering software) |
| RISA➣Radioactive Iodinated Serum Albumin |
| RISA➣rDNA Internal Spacer Analysis |
| RISA➣Radioimmunosorbent Assay |
| RISA➣Reduced Instruction Set Architecture |