- photoelectric cell
- photocell
- plant organ
- paviour
- paved surface
- pavement vendor
- paving machine
- prestidigitation
- pecan tree
- pistachio
- pecan
- periodical cicada
- prestidigitator
- patagonian desert
- Paraguayan monetary unit
- Papuan monetary unit
- Polish monetary unit
- Panamanian monetary unit
- Portuguese monetary unit
- Peruvian monetary unit
- Philippine monetary unit
- periclase
- paramagnetism
- permanent magnet
- paramagnet
- parroquet
- parrot fashion
- parrot disease
- plot element
- panga
- plotter
- priestcraft
- programing language
- programming language
- porbeagle
- proton magnetic resonance
- Pulsatilla
- Podophyllum
- Persea
- plantain family
- Piperaceae
- Proteaceae
- Plantaginaceae
- Plumbaginaceae
- pepper family
- primrose family
- pitcher_plant family
- protea family
- Polygonaceae
- Punicaceae