jean bernard leon foucault is a noun meaning "French physicist who determined the speed of light and showed that it travels slower in water than in air; invented the Foucault pendulum and the gyroscope (1819-1868)". It carries one recorded sense.
Definitions, synonyms and semantic relations for jean bernard leon foucault come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.