| SIMS | secondary ion mass spectroscopy |
|---|---|
| SY | spectroscopy; syphilis, syphilitic |
| TOCSY | total correlation spectroscopy |
| TQFCOSY | triple-quantum filtered correlated spectroscopy |
| UPS | ultraviolet photoelectron spectroscopy; uninterruptible power supply; uroporphyrinogen synthetase; u... |