There are multiple definitions:

1. sensory neuron(English)

   • Neurons

2. student nurse(English)

   • Nurse / nursing, Education

3. skilled nursing(English)

   • Nurse / nursing, Specialist / expert

4. sinus node(English)

   • RA
   • Electrophysiology, Cardiology, Anatomy

5. sentinel node(English)

   • SNNS, HES, BC, ELND, PBD
   • Oncology, Biopsy, Microscopy, Lymphatic system/lymphoma
   • https://doi.org…avd.ra.12.00033
   • https://doi.org…7/s002590050326

6. Sella-Nasion [line](English)

   • often used by orthodontists as a reference line for assessment of dentofacial deformities. Its most important value is its relative stability, practicality and the ease of location of both points Sella and Nasion; aka anterior cranial base
   • Dentistry, Anatomy
   • https://doi.org….1995.tb00239.x

7. spontaneous nystagmus(English)

   • only the degree at the initial evaluation affects both the hospitalization period and the bed-side examination results at 1 month after discharge in patients with VN
   • VN, SCC
   • Ophthalmology
   • https://doi.org…000000000002651

8. superonasal(English)

   • CCL, mRNFL, OCT, pRNFL, RNFL, SS-OCT, ST
   • Ophthalmology
   • https://doi.org…55/2022/5625803

9. supernatant(English)

   • GAG, MNC, PSS, MNC-SN
   • Rheumatology, Clinical chemistry
   • https://doi.org…/art.1780290108

10. sinomenine(English)

    • refers to neuroprotective regulation of autophagy in Parkinson’s disease
    • MPTP, mTOR, PD
    • Parkinson
    • https://doi.org…54.2022.2100780

11. sensitivity(English)

    • SP, TCB
    • Diagnostics, Statistics
    • https://doi.org…001/omj.2013.32