Encyclopedias, Almanacs, Transcripts, and Maps
- Postures and Gestures
- potential difference
- Potoos (Nyctibiidae)
- Powell, John Wesley (1834 – 1902) American Philosopher, Geologist, Anthropologist, and Scientific Explorer
- Powell, Michael
- Powell, ‘Bud’
- power of numbers
- Power Plants
- Prabhupada, A. C. Bhaktivedanta
- prairie chicken
- Prairie Dogs
- Prajāpati
- Prajñā
- Prakṛti
- Pralaya
- Pratincoles and Coursers (Glareolidae)
- Pratītya-Samutpāda
- Pratt, James B.
- prawn
- praying mantis