- p-terphenyl
- p tert butylcatechol
- p-tert-butylcatechol
- pterygium
- pterygoid bone
- pterygoid lamina
- pteryla
- PTFE
- PTFE gasket
- PTH
- PTh
- p-th Chern class
- p-th order convergence
- Pthreads编程接口
- p^{th} Wasserstein distance
- pth Wasserstein distance
- PTI
- PT-IGBT
- ptilinum
- ptisana ferns
- PTLD after haematopoietic cell transplantation
- Ptolemaeus
- Ptolemaeus crater
- Ptolemaic constellation
- Ptolemaic Period