| SD | Standard Deviation; 표준편차 |
|---|---|
| SD | Sandhoff disease; senile dementia; septal defect; serologically defined; serologically detectable; serologically determined; serum defect; Shine-Dalgarno [sequence]; short dialysis; shoulder disarticulation; Shy-Draper [syndrome]; skin destruction; skin dose; somatization disorder; sphincter dilatation; spontaneous delivery; sporadic depression; Sprague-Dawley [rat]; spreading depression; stable disease; standard deviation; statistical documentation; Stensen duct; Still disease; stone disintegration; straight drainage; strength duration; streptodornase; sudden death; superoxide dismutase; systolic discharge |
| Sd | stimulus drive |
| Sd | discriminative stimulus |
| SD | Soft diet |
| SD-SK | streptodornase-streptokinase |
| SDA | right sacroanterior [fetal position] [Lat. sacrodextra anterior]; sialodacryoadenitis; specific dynamic action; succinic dehydrogenase activity |
| SDAT | senile dementia of Alzheimer type |
| SDAVF | spinal dural arteriovenous fistula |
| SDB | sleep-disordered breathing |