Definitions
1.NounA mechanical linkage based on parallelograms causing two objects to move in parallel; notably as a drawing aid."A pantograph can be adjusted to make either scaled or exact copies."
2.NounBy extension, a structure of crosswise bars linked in such a way that it can extend and compress like an accordion, such as in a pantograph mirror or a scissor lift.
3.NounA pattern printed on a document to reduce the ease of photocopying."I was impressed by the quality of the pantograph; I hadn't noticed it on the original, but the copies were covered in unpleasant lines."
4.NounA similarly-formed conductive device, now usually Z-shaped, that collects electric current from overhead lines for trains and trams.
5.VerbTo engrave by means of a pantograph (parallel linkage) system.