Definition of pylon
1 a
: a usually massive gateway
b
: an ancient Egyptian gateway building in a truncated pyramidal form
c
: a monumental mass flanking an entranceway or an approach to a bridge
2 a
chiefly British
: a tower for supporting either end of usually a number of wires over a long span
b
: any of various towerlike structures
3 a
: a post or tower marking a prescribed course of flight for an airplane
b
: traffic cone
c
: one of the flexible upright markers positioned on a football field at the corners of the end zone
4
: a rigid structure on the outside of an aircraft for supporting something (such as an engine or missile) — see airplane illustration
