| OST | object sorting test; Office of Science and Technology |
|---|---|
| PCAST | President's Committee of Advisors on Science and Technology |
| PSAC | President's Science Advisory Committee |
| RCS | rabbit aorta-contracting substance; red cell suspension; reticulum cell sarcoma; right coronary sinu... |
| SACNAS | Society for the Advancement of Chicanos and Native Americans in Science |