Also found in: Acronyms, Encyclopedia, Wikipedia.
Lissajous figure(ˈliːsəˌʒuː; ˌliːsəˈʒuː)
(General Physics) a curve traced out by a point that undergoes two simple harmonic motions in mutually perpendicular directions. The shape of these curves is characteristic of the relative phases and frequencies of the motion; they are used to determine the frequencies and phases of alternating voltages
[C19: named after Jules A. Lissajous (1822–80), French physicist]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014