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Foucault

American  
[foo-koh] / fuˈkoʊ /

noun

  1. Jean Bernard Léon 1819–68, French physicist.

  2. Michel 1926–84, French philosopher.


Foucault British  
/ fuko /

noun

  1. Jean Bernard Léon (ʒɑ̃ bɛrnar leɔ̃). 1819–68, French physicist. He determined the velocity of light and proved that light travels more slowly in water than in air (1850). He demonstrated by means of the pendulum named after him the rotation of the earth on its axis (1851) and invented the gyroscope (1852)

  2. Michel . 1926–84, French philosopher and historian of ideas. His publications include Histoire de la folie (1961) and Les Mots et les choses (1966)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Foucault Scientific  
/ fo̅o̅-kō /
  1. French physicist who determined that light travels more slowly in water than in air, confirming predictions made by the wave theory of light. In 1850 Foucault also measured the absolute velocity of light. In 1851, by using a type of pendulum that is now named after him, Foucault demonstrated the rotation of the Earth, and in 1852 perfected a gyroscope for the same purpose.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

His college, however, was filled with such famous authors as Michel Foucault, John Barth, Donald Barthelme and J.M.

From Los Angeles Times • Feb. 15, 2026

To our shame, even nonbelievers such as Gore Vidal and Michel Foucault understood this.Foucault once said, “We are creating a hermaphrodism — a false species.”

From Washington Times • Jun. 11, 2023

The show takes its title from a book by the French philosopher Michel Foucault, who describes the emergence of a discourse about something that is being societally suppressed.

From New York Times • Mar. 16, 2023

Foucault also explained that "Truth is linked in a circular relation with systems of power which produce and sustain it."

From Salon • Feb. 7, 2023

The period between the late eighteenth and the mid-nineteenth centuries, wrote Michel Foucault, saw “the disappearance of torture as a public spectacle” and the gradual phasing out of corporal punishments.

From "Newjack: Guarding Sing Sing" by Ted Conover

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