資料來源 : Webster's Revised Unabridged Dictionary (1913)

Foucault current \Fou`cault" cur`rent\ [After J. B. L. Foucault
   (1819-68), French physicist.] (Elec.)
   An eddy current.

Eddy current \Ed"dy cur"rent\ (Elec.)
   An induced electric current circulating wholly within a mass
   of metal; -- called also {Foucault current}.