pantograph
Pantograph (noun) means a mechanical linkage of parallelogram-shaped bars that lets two points move in parallel, often used to copy a drawing at a different scale. Example: “The draughtsman used a pantograph to enlarge the sketch onto the poster board.”
How to use pantograph
Learner’s notesIn plain EnglishA pantograph is a folding, linked framework used either for copying drawings, for extending like scissors, or for collecting power on a train.
The rail transport sense is standard technical vocabulary among transport engineers and enthusiasts.
Context tells you which meaning is intended: near trains it means the power-collecting device, near drawing or lifting equipment it means the folding linkage.
Trace the full origin ↓Fill the gap
Can you complete this real example?
The draughtsman used a _____ to enlarge the sketch onto the poster board.
Etymology
The word comes from French pantographe. That in turn combines Greek panto-, from pas meaning all, with graphein, meaning to write or draw.