There are multiple definitions:

1. specific dynamic action [of food](English)

   • amount of energy expenditure above the RMR due to the ingestion and digestion of food for use as energy or conversion to a storage form
   • RMR, TEF
   • Nutrition, Metabolism
   • https://doi.org…3/ajcn/31.5.764
   • https://en.wiki…_dynamic_action

2. seizure detection algorithm(English)

3. strand-displacement amplification(English)

   • HIV, PCR

4. shortening deactivation(English)

   • also termed Gregg phenomenon
   • ESPVR, FSM, PVL, Ees, ESV, SW
   • Physiology, Cardiology
   • https://doi.org…598-021-82791-3

5. supratip deviation angle(English)

   • ASA, ECS, NOSE, ULC, ISS
   • ENT
   • https://doi.org…0266-017-0973-1

6. stabilogram-diffusion analysis(English)

   • refers to effect of plantar flexor muscle fatigue on postural control
   • AP, ML, LLPL
   • Musculoskeletal system, Regulation / control
   • https://doi.org…kin.2011.08.005

7. service delivery area(English)

   • behavioral health conditions affect as many as 25% of the adults in the United States, particularly in individuals with low incomes. Behavioral conditions have also been shown to be associated with increasing occurrence of chronic diseases such as cardiovascular diseases, diabetes, obesity, asthma, epilepsy and cancer
   • CHIP, HRQoL, LMIC, PCS, SES, SMI, CRG, SF-12, MOS
   • Behavior(al science), Social aspects, Quality of life, Mental health
   • https://doi.org…2955-018-0858-2

8. stearidonic acid(English)

   • ALA, DHA, EPA, VLC
   • Diet, Veterinary medicine
   • https://doi.org….1021/jf505185u

9. stimulus deprivation amblyopia(English)

   • this entity is rare in human congenital ptosis, perhaps because of the counter effect of compensating head posture
   • Ophthalmology, Congenital disorders
   • https://doi.org…tra.8.4.261.687

10. sexually dimorphic preoptic area(English)

    • PdPN, RRF
    • Sexuality, Brain (dys)function
    • https://doi.org…4530(94)90033-7
    • https://doi.org….1002/cne.10128