There are multiple definitions:

1. seasonal affective disorder(English)

   • Emotional aspects, Psychology

2. single-wavelength anomalous dispersion(English)

   • APA, BCCT, NSS, SSS
   • Biophysics

3. small airways disease(English)

   • Respiratory system

4. stress-assisted diffusion(English)

5. sum of absolute differences(English)

   • Statistics

6. supraglottic airway device(English)

   • OLP
   • Mouth, esophagus and stomach
   • https://doi.org….1111/aas.13727

7. schizoaffective disorder(English)

   • LAIF
   • Psychiatry
   • https://doi.org…005-019-00449-9

8. social anxiety disorder(English)

   • characterized by excessive fear of embarrassment or humiliation in social situations, which in turn leads to marked distress or avoidance of these situations and functional impairment as described in DSM-IV-TR; aka social phobia
   • CBT, DSM, GABA, SSRI
   • Anxiety/fear, Social aspects
   • https://doi.org/10.5772/19367

9. sepsis, arteriopathy, denervation(English)

   • CLI, ABI, PAD, DFU
   • Vascular disease, Surgery
   • https://doi.org…jvs.2013.08.003

10. systemic autoimmune disease(English)

    • mainly due to inflammation and autoimmunity
    • ATS, CVD
    • Autoimmunity, Atherosclerosis /atherogenic
    • https://doi.org…sis.2015.03.044

11. single ascending dose(English)

    • AE, MAD, PK, GLP-1RA
    • Pharmacology / pharmaceutics, Adverse effect, Safety and health
    • https://doi.org….1111/cts.13715
    • https://doi.org…263-023-01041-4
    • https://doi.org….1111/dom.15383

12. sporadic Alzheimer's disease(English)

    • Aβ, AD, APP, CSF, FAD
    • Alzheimer's disease, Dementia
    • https://doi.org…akushi.15-00189