| PIS | preinfarction syndrome; primary immunodeficiency syndrome; Provisional International Standard |
|---|---|
| PLC | phospholipase C; primary liver cancer; proinsulin-like component; protein-lipid complex; pseudolymph... |
| PLCC | primary liver cell cancer |
| PLS | Papillon-Lefevre syndrome; polydactyly-luxation syndrome; preleukemic syndrome; primary lateral scle... |
| PM | after death (Lat. post mortem); after noon [Lat. post meridiem]; mean pressure; pacemaker; pantomogr... |