Top Definition
1. a pendulum device named after the French physicist Léon Foucault, used to demonstrate the rotation of the Earth.

2. an extremely complicated novel by Umberto Ecco, first published in 1988. Persons successfully reading this book should be given a badge of merit.
Juicy O'Gazem: 'Did you really read all of "Foucault's Pendulum"'

Rod Stiffy: 'Yessirree, I did.'

Juicy O'Gazem: 'Wow, you should get a badge or a medal or something.'
by Figleaf23 August 24, 2007

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