| ser | series, serial |
|---|---|
| S | Greek capital letter sigma; syphilis; summation of series |
| SS | disulfide; sacrosciatic; saline soak; saline solution; saliva sample; saliva substitute; Salmonella-... |
| UGIS | upper gastrointestinal series |
| ARF | acute renal failure; acute respiratory failure; acute rheumatic fever; Addiction Research Foundation... |