Word forms: (regular plural) farads
COBUILD Key Words for Electrical Engineeringnoun(Electrical engineering: Circuits, Electrical power, Computing and control) A farad is a unit of capacitance. ⇒ One coulomb can be defined as one farad of capacitance times one volt of electric potential difference. ⇒ Because the farad is a very large quantity, capacitance in electronic applications is usually expressed in millionths of a farad. ⇒ A farad is a unit of capacitance.Word originsThis word is named for Michael Faraday (1791-1867), the English physicist and chemist who contributed to the fields of electromagnetism and electrochemistry.