| Abbreviation | Definition |
|---|---|
| PGS | Plant Genetic Systems |
| PGS | Preimplantation Genetic Screening |
| PGSC | Peromyscus Genetic Stock Center |
| PGSC | Potato Genome Sequencing Consortium |
| PGT | Preimplantation Genetic Testing |
| PGTW | Parallel Genetic Time Warping |
| PH | Process Homeostasis |
| Phe-Glu-Gly | Phenylalanine-Glutamic Acid-Glycine |
| PHG | Program in Human Genetics |
| PHG | Public Health Genetics |
| PHGP | Phospholipid Hydroperoxide Glutathione Peroxidase |
| PI | Protease Inhibitor |
| PI3K | PhosphoInositide-3 Kinase |
| PIA | PTS-Independent Antitermination |
| PIFO | Primary Cilia Formation |
| PIGI | Personally Identifying Genetic Information |
| PIH | Prolactin Inhibiting Hormone |
| PIKB | Protein Interaction Knowledge Base |
| PIKR | Phosphatidyl-Inositol-3-Kinase Regulator |
| PILB | Type IV PILus Biogenesis |