There are multiple definitions:

1. superoxide dismutase(English)

   • Abbreviation may be used in Am. Soc. Physiol. journals without definition.
   • eNOS, MnSOD, ROS, CuZnSOD, AECA, BALF, GSH, GSH-Px, MAN, MDA, MLI, SAM
   • Physiology
   • https://doi.org…001-023-01396-w

2. source-to-object distance(English)

3. selective oropharyngeal decontamination(English)

   • ICU, SDD
   • Microbiology, Mouth, esophagus and stomach
   • https://doi.org…pen-2018-028876

4. septo-optic dyplasia(English)

   • aka Morsier syndroom
   • Ophthalmology

5. subclinical ovulatory disturbance(English)

   • impacts bone mineral density
   • BMD
   • Ovary and uterus, Menstruation, Hormone, Skeleton and bone (formation)
   • https://doi.org…061/2010/845180