There are multiple definitions:

1. Pidgin Sign English(English)

2. power spiral enteroscopy(English)

   • BGE, DAE, DBE, SBE, SE
   • Gastroenterology
   • https://doi.org…jg.v25.i27.3538

3. portosystemic encephalopathy(English)

   • a reversible syndrome of impaired brain function occurring in patients with advanced liver failure
   • HE
   • Brain (dys)function, Liver disease
   • https://dx.doi.…3/gastro/gox013

4. percent signal enhancement(English)

   • CF, MPSE, MRI, OE, UTE, VDP
   • Medical imaging, Pulmonology
   • https://doi.org…1002/jmri.25877

5. perispinal etanercept(English)

   • CNS, TBI, TNF
   • Brain (dys)function, Injury, Post-traumatic state
   • https://doi.org…0263-012-0013-2

6. postsecondary education(English)

   • supported by vocational rehabilitation
   • ASD, TAY, TAY-ASD, VR
   • Education, Disability, Psychology, Rehabilitation
   • https://doi.org…803-019-03972-8

7. phase-shift estimator(English)

   • AWGN, FTF, IRLS, OLSE, PSA, SNR, SPRIT
   • Signal analysis, Statistics
   • https://doi.org….1364/AO.393153