pent - pict
- pentagon
- pentagonal
- pentagrid converter tube
- pentahedron
- pentel
- pentode
- pentode output stage
- pentode transistor
- people
- per cent
- per cent defective
- per cent saturation
- per mille
- per thousand
- perceived colour
- percent
- percent by volume
- percent by weight
- percent defective
- percent distortion
- percent of fill
- percentage
- percentage bill-of-material
- percentage defective
- percentage modulation
- percentage of dust
- percentage of oxygen
- percentage of purity
- percentage of rejects
- percentage of water
- perceptibility
- perceptible
- perception
- perception domain
- perceptor
- perceptron
- perchlorethylene
- perchloric acid
- perchloroethylene
- percussion
