Definitions

1. noun

The standard unit of electric charge, equivalent to the charge of 6.242 × 10^18 protons or 3.122 × 10^10 elementary charges.

“The device measured a charge of 5 coulombs of electricity.”

2. noun

A unit of quantity in the International System of Units.

“The measurement was taken in coulombs and meters.”

3. proper noun

A French unit of quantity, named after Charles Augustin de Coulomb, a French physicist.

“The scientist worked with various units, including coulombs and liters.”