1. (noun) a unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second

• j
• watt second

2. (noun) English physicist who established the mechanical theory of heat and discovered the first law of thermodynamics (1818-1889)

• james prescott joule

1. (noun) a unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second

• energy unit
• heat unit
• work unit