Pylon

A highly visible marker for controlling traffic.

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.

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