SO

There are multiple definitions:

  1. second opinion(English)

  2. salpingo-oophoritis(English)

  3. significant other(English)

  4. specialist ouderengeneeskunde(Dutch)

  5. same observer(English)

  6. supraorbital [nerve](English)

  7. sham operated(English)

  8. sunflower oil(English)

  9. silicone oil [tamponade](English)

  10. space occupation [index](English)

  11. sustaining organization(English)

  12. sympathetic ophthalmia(English)

  13. safety officer(English)

  14. spline operator(English)

  15. sensitive only(English)