| Acronym | Meaning |
| DARPA | U. S. Defense Advanced Research Projects Agency |
| MSL | Mars Science Laboratory - Mean Sea Level -Missile |
| AYU | As Yet Unknown |
| RAMARK | RAdar MARKer |
| ISSCR | International Society For Stem Cell Research |
| MCA | Micro Channel Architecture - MultiChannel Analyzer |
| SL | Sierra Leone (ISO 3166 And FIPS 10-4 Country Code Digram) -Start Line |
| NRTA | National Thoroughbred Racing Association - National Rat Terrier Association - National Retail Tenants Association - National Retired Teachers Association - Northwest Regional Transmission Association |
| JSP | JavaServer Page |
| POD | Port Of Debarkation |