Pronunciation: (pan'tu-graf", -gräf"), [key]
1. Also,pantagraph.an instrument for the mechanical copying of plans, diagrams, etc., on any desired scale.
2. Elect.a device usually consisting of two parallel, hinged, double-diamond frames, for transferring current from an overhead wire to a vehicle, as a trolley car or electric locomotive.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.