| STEM | scanning transmission electron microscope; Society of Teachers of Emergency Medicine |
|---|---|
| STM | scanning tunneling microscope; short-term memory; streptomycin |
| TEM | transmission electron microscope/ microscopy; triethylenemelamine |
| UEM | universal electron microscope |
| 'Greek letter alpha' | angular acceleration; first [carbon atom next to the carbon atom bearing the active group in organic... |