• Christmas tree in Drag Racing. The name given to the lighting system used to start the race. It has five yellow lights that flash at half-second intervals, leading to a green sixth light that will signal the start of the race. There is a red seventh light, that will come on if a car advances too early. If this happens, the driver is automatically disqualified from the race.


    Christmas tree meaning & definition 1 of Christmas tree.


  • The valves and fittings installed at the top of a gas or oil well to control and direct the flow of well fluids.

    Christmas tree meaning & definition 2 of Christmas tree.

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This page shows you usage and meanings of Christmas tree around the world.