There are multiple definitions:

1. fibrin degradation product(English)

   • components of the blood produced by clot degeneration; aka fibrin split products
   • FSP
   • Thrombocyte /thrombosis
   • https://doi.org…C2013-0-19483-4

2. factitious disorder by proxy(English)

   • APSAC, MSBP, PCF
   • Psychology

3. fractional diastolic pressure(English)

   • an index of aortic pressure pulsatility, defined as DAP/MAP
   • AIx, DAP, DBP, FSP, MAP, PP, SAP, SBP
   • Hemodynamics, Ratio-based metric
   • https://doi.org…siol.00713.2005

4. flexor digitorum profundus(Latin)

   • AIN, UN
   • Anatomy
   • https://doi.org…292550317740692

5. fixed dental prosthesis(English)

   • CAD, CAM, PAZ, PFM, CISFP, FP1
   • Dentistry, Prosthetics
   • https://doi.org…9X.2011.00825.x
   • https://doi.org…1111/jopr.13905