pantograph

/ˈpæntəˌɡræf/
noun
  1. A device used to copy a drawing or plan on a different scale, consisting of a system of linked rods.
    • The artist used a pantograph to enlarge the small sketch onto a large canvas.
    • In the classroom, the teacher demonstrated how a pantograph can reduce a map to half its size.
    • Engineers once relied on a pantograph to trace and scale blueprints by hand.
  2. A spring-loaded device on the roof of an electric train or tram that collects power from an overhead wire.
    • The train's pantograph rose with a hiss to connect with the overhead cable.
    • The engineer inspected the pantograph for wear before the morning run.
    • When the pantograph lost contact, the tram slowed to a stop.
Synonyms
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