| Acronym | Meaning |
 | RMS | Root-mean-square |
| EPAC | External Program Advisory Committee |
| SIO | Scripps Institution Of Oceanography |
| ISTP | International Solar Terrestrial Program |
| ATLAS | Advanced Testing Line For Actinide Separations |
| MAC | Machine Aided Cognition |
| RAM | Random Access Memory |
| NASN | National Air Surveillance Network |
| VBNS | Very High Performance Backbone Network Service |
| N-AWIPS | National Centers Advanced Weather Interactive Processing Systems |
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