There are multiple definitions:

1. Royal Society of Chemistry(English)

   • connecting scientists with each other and society as a whole, so they can do their best work and make discoveries and innovation happen
   • Organizations (scientific), Biochemistry
   • https://www.rsc.org/

2. Russian Society of Cardiology(English)

   • AHA, ACC, NHS, BHF
   • Cardiology, Organizations (clinical)
   • https://scardio.ru/en/

3. radius of septal curvature(English)

   • RFWC
   • Cardiology, Biophysics
   • https://doi.org…siol.00833.2020

4. rhythmic somatosensory cueing(English)

   • may refer to rhythmic auditory cueing, e.g. by a metronome
   • PD, UPDRS
   • Parkinson, Exercise & Training, Gait/walking
   • https://doi.org…jns.2006.05.034