Definition of: pylon

(pī′lon) noun
1. Archit. A monumental structure constituting an entrance to an Egyptian temple or other large edifice, consisting of a central gateway, flanked on each side by a truncated pyramidal tower.
2. A stake marking the course in an airdrome or turning point in an aerial race.
3. One of the tall, mastlike metal structures from whose summits high–tension wires are carried across open country.
4. Surg. An artificial leg, usually temporary. [<Gk. pylōn a gateway <pylē a gate]