from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A mechanical device that uses a combination of pendulums to generate an image based on Lissajous curves
from The Century Dictionary and Cyclopedia
- n. An apparatus in which two pendulums vibrate at right angles to each other, the movement of a stylus or pen attached to one making a record on a plane surface supported by the other.
Sorry, no etymologies found.