Pran - prot
- Prandtl analogy
- Prandtl boundary layer
- Prandtl boundary-layer theory
- Prandtl equations
- Prandtl hypothesis
- Prandtl layer
- Prandtl mixing-length theory
- Prandtl number
- Prandtl relation
- Prandtl rule
- Prandtl similarity number
- Prandtl theory
- Prandtl tube
- Prandtl-Glauert compressibility formula
- Prandtl-Glauert rule
- Prandtl-Mayer expansion
- Prandtl-Mayer flow
- Prandtl-Meyer expansion theory
- Prandtl-Meyer flow equation
- Prandtl-Munk theory
- Prandtl-Reuss equations
- praphase
- praseodymium
- pre-breakdown current
- pre-breakdown phase
- pre-expansion saturation
- pre-exponential factor
- pre-Hilbertian space
- pre-injector
- pre-ionization
- pre-main-sequence evolution
- pre-straining
- preaccelerating anode
- preacceleration
- preamplification
- preamplifier
- preasymptotic correction
- preattentive vision
- prebreakdown electroluminescence
- prebreakdown state