| Acronym | Meaning |
| SXRD | Surface X-ray Diffraction |
| CMBR | Cosmic Microwave Background Radiation |
| IKES | Ion-kinetic-energy Spectroscopy |
| NICMOS | Near-IR Camera And Multiobject Spectrometer |
| GEASIC | Gradient-expansion Approxn. Self-interaction Correction (functional |
| CRDL | Contract Required Detection Limit(s) |
| LDS | Leak Detection System |
| FEWS | Fiber-optic Evanescent Wave Spectroscopy |
| MORTI | Mesopause Oxygen Rotational Temp. Imager |
| OASIS | Ocean And Atmospheric Sounding Interferometer System |