There are multiple definitions:

1. RNA polymerase domain(English)

   • CTD, NTD
   • Biochemistry

2. renal pelvis dilatation / diameter(English)

   • diagnostic value of renal pelvis diameter in pre- and postnatal sonographic screening
   • CKD, FAS, UTI
   • Nephrology, Ultrasound, Neonatal situation, Screening
   • https://doi.org…r.168.4.9124107

3. reverse puncture device(English)

   • refers to circular staplers for digestive tract reconstruction after total gastrectomy
   • FETE
   • Gastroenterology, Surgery, Oncology
   • https://doi.org…fonc.2020.00575

4. Rhubarb Peony decoction(English)

   • a formula of traditional Chinese medicine, commonly used to treat ulcerative colitis
   • DAI, GC-MS, SCFA, UC
   • Gastroenterology, Pharmacology / pharmaceutics
   • https://doi.org…jep.2018.08.033

5. removable partial denture(English)

   • Dentistry
   • https://www.ncb…les/PMC4888160/
   • https://doi.org…155/2012/643436

6. right posterior descending coronary artery(English)

   • RPL
   • Cardiology

7. relative population doubling(English)

   • CA, RCC, RICC
   • Genetics, Toxicology, Environment
   • https://doi.org…tox.2015.11.007
   • https://doi.org…1021-017-0091-y