- the standard unit of quantity of electricity in the International System of Units (SI), equal to the quantity of charge transferred in one second across a conductor in which there is a constant current of one ampere. Abbreviation: C
- French physicist and inventor.
- the derived SI unit of electric charge; the quantity of electricity transported in one second by a current of 1 ampere
- Charles Augustin de (ʃarl oɡystɛ̃ də). 1736–1806, French physicist: made many discoveries in the field of electricity and magnetism