part - pick
- pattern of intricate external shape
- pattern plate
- pattern plate molding
- pattern recording
- pattern shop
- pattern taper
- pattern-propagation factor
- pattern-shop
- patterned section
- patterning
- patternmaker
- patternmaker's rule
- patternmaking
- patterns scrap
- Pauli's exclusion principle
- pause time
- pause-and-pull method of casting
- paving
- pay dirt
- payloader
- payoff cradle
- payoff equipment
- payoff reel
- payoff stand
- payoff station
- Peach-Koehler equation
- peacock copper
- peacock ore
- peak
- peak density
- peak design capacity
- peak displacement towards low-6 values
- peak flame temperature
- peak height
- peak intensity
- peak intensity ray
- peak of curve
- peak-load time
- pear
- pear-shaped