| PH | acidity (pH) 
| Others |
| PH | Geoworks Optimized .goh include file
| Others |
| pH | Hydrogen-Ion Concentration (Alkalinity)
| Others |
| PH | Pale Headed
| Others |
| PH | PantyHose
| Others |
| PH | Papillary Hyperplasia
| Others |
| PH | Parathyroid Hormone
| Others |
| PH | Partial Hysterectomy
| Others |
| PH | Partido Humanista
| Others |
| PH | Party Hard
| Others |
| PH | Passive Haemagglutination
| Others |
| PH | Past History
| Others |
| PH | Patch for HP
| Others |
| PH | Patient History
| Others |
| PH | Paul Halpern
| Others |
| PH | Pee Here
| Others |
| PH | Peliosis Hepatis
| Others |
| PH | Penthouse
| Others |
| PH | Per Hire
| Others |
| PH | Percentage Hydrogen
| Others |
| PH | Perl Header
| Others |
| PH | Perl header file
| Others |
| PH | Permanent Hiatus
| Others |
| PH | Personal Hygiene
| Others |
| PH | Pharmacies
| Others |
| PH | PHase
| Others |
| PH | phenacetin
| Others |
| PH | Phi Hanh
| Others |
| PH | Philadelphia
| Others |
| Ph | Philadelphia Chromosome
| Others |
| PH | Philadelphia Field Office
| Others |
| PH | Philippines
| Others |
| PH | Phillips Head
| Others |
| Ph | Phone
| Others |
| Ph | Phonetic spelling of word or name
| Others |
| PH | phosphate
| Others |
| PH | Phrase-table (MS C/C++)
| Others |
| PH | Phucking Huge
| Others |
| PH | Physically Handicaped
| Others |
| PH | Pin Hole
| Others |
| PH | Pinch Hitter
| Others |
| PH | Ping Hui
| Others |
| PH | Place Hold
| Others |
| PH | Place Holder
| Others |
| PH | Plant Hygrophelia
| Others |
| PH | Platinum Hit
| Others |
| PH | Players Handbook
| Others |
| PH | Pleckstrin Homology
| Others |
| PH | Pocket Hole
| Others |
| PH | Pokemon Heart
| Others |
| PH | Political Hypocrisy
| Others |
| PH | Polyphase
| Others |
| PH | Pondus Hydrogenii
| Others |
| PH | Porn Hub
| Others |
| PH | Porphyria Hepatica
| Others |
| PH | Post-Hartshorne
| Others |
| PH | Posterior Hypothalamus
| Others |
| PH | Postural Hypotension
| Others |
| PH | Potassium Hydrogen
| Others |
| PH | Potenial Hydrogen
| Others |
| PH | Potentia Hydrogenii
| Others |
| PH | Potential Health
| Others |
| PH | Potential Heat
| Others |
| PH | Potential Hydrogen
| Others |
| PH | Potential Of Hardness
| Others |
| PH | Potential of Hydrogen
| Others |
| PH | Potenz Hydrogen
| Others |
| PH | Poul Henningsen
| Others |
| PH | Power House
| Others |
| PH | Power of Hydrogen
| Others |
| PH | Power of Hydrogen (hydrogen-ion concentration)
| Others |
| PH | Power of Hydronium
| Others |
| PH | Prahova
| Others |
| PH | Prancing Horse
| Others |
| PH | Precipitation Hardening
| Others |
| PH | Presbyterian Hospital
| Others |
| PH | Previous History
| Others |
| PH | Primary Hyperparathyroidism
| Others |
| PH | Private Header
| Others |
| PH | Probable Helium
| Others |
| PH | Process Homeostasis
| Others |
| PH | Product Hierarchy
| Others |
| PH | Professional Hunter
| Others |
| PH | Programming Humor
| Others |
| PH | Project Headquarters
| Others |
| PH | Prolyl Hydroxylase
| Others |
| PH | Propane Heat
| Others |
| PH | Proportional Hazard
| Others |
| PH | Prospect Hill
| Others |
| PH | Pseudoepitheliomatous Hyperplasia
| Others |
| PH | Psychological Hypnosis
| Others |
| PH | Pubic Hair
| Others |
| PH | Public Health
| Others |
| PH | Public Holidays
| Others |
| PH | Public House
| Others |
| PH | Public Html
| Others |
| PH | Pulmonary Haemorrhage
| Others |
| PH | Pulmonary Haemosiderosis
| Others |
| PH | Pulmonary Hypertension
| Others |
| PH | Punishment House
| Others |
| PH | Purple Heart
| Others |
| PH | The Pulsed Heat
| Others |