pantograph

Meanings

1. A mechanical linkage based on parallelograms causing two objects to move in parallel; notably as a drawing aid.
2. By 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. A pattern printed on a document to reduce the ease of photocopying.
4. A similarly-formed conductive device, now usually Z-shaped, that collects electric current from overhead lines for trains and trams.

1. To engrave by means of a pantograph (parallel linkage) system.

Etymology

From French pantographe, from panto- (from Ancient Greek παντός (pantós), genitive singular of πᾶν (pân, “all”)), and -graphe (from γράφειν (gráphein, “to write”)).