DICTIONARY OF AUTOMOTIVE TERMS - "Py"
- Pylon
- A highly visible marker for controlling traffic.
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Pyrolysis
- The thermal decomposition of biomass at high temperatures (greater than
200°C in the absence of air. The end product of pyrolysis is a mixture of solids (char), liquids (oxygenated oils), and gases (Methane, carbon monoxide, and carbon dioxide) with proportions determined by operating temperature, pressure, oxygen content, and other conditions.
- Pyrometer
- A device which determines the temperature in various parts of a tire.
- Pyroxylin paint
- An early type of quick drying synthetic paint.