| RAM | random-access memory; rapid alternating movements; rectus abdominis muscle; rectus abdominis myocuta... |
|---|---|
| REM | rapid eye movement; recent-event memory; reticular erythematous mucinosis; return electrode monitor;... |
| ROM | range of motion; read only memory; reduction of movement; regional office manual; removal of metal [... |
| SRAM | static random access memory |
| STM | scanning tunneling microscope; short-term memory; streptomycin |