Source : Webster's Revised Unabridged Dictionary (1913)

Farad \Far"ad\, n. [From Michael Faraday, the English
   electrician.] (Elec.)
   The standard unit of electrical capacity; the capacity of a
   condenser whose charge, having an electro-motive force of one
   volt, is equal to the amount of electricity which, with the
   same electromotive force, passes through one ohm in one
   second; the capacity, which, charged with one coulomb, gives
   an electro-motive force of one volt.

Source : WordNet®

farad
     n : the capacitance of a capacitor that has an equal and
         opposite charge of 1 coulomb on each plate and a voltage
         difference of 1 volt between the plates [syn: {F}]