There are multiple definitions:

1. right leg(English)

   • ECG
   • Electrophysiology

2. reinforcement learning(English)

   • used for classification of experimental statistics in local/nonlocal sets, applying hidden neurons as hidden variables for completion of quantum theory, and machine learning-assisted state classification
   • Artificial intelligence, Machine learning, Classification, Statistics
   • https://doi.org….1116/5.0007529

3. relative length(English)

   • following injury, besides the cross-sectional area (CSA), the length of edema is divided by the total length of the muscular belly of the semimembranosus (SM), the last one being the distance between the proximal muscle-tendon junction and the distal muscle-tendon junction
   • CSA
   • Musculoskeletal system, Injury
   • https://doi.org…5/s-0043-111587

4. Ringer's lactate(English)

   • may refer to volume expansion
   • ED, ICU, IVC
   • Intensive care medicine, Emergency medicine, Therapeutic approaches
   • https://doi.org…55/2020/2785425

5. radiation lobectomy(English)

   • AFP, CC, CP, CRC, CT, FLR, HCC, PVE, Y90
   • Liver disease, Radiotherapy /radiation
   • https://doi.org…hep.2013.06.015

6. relative lightness(English)

   • HQ, mMASI
   • Dermatology, Laser technique
   • https://doi.org….1002/lsm.22735