electric charge

Short definition from Wiktionary

Noun

1. 1
   Any of several quantities related to electricity: The static electric energy of a charged body.
2. 2
   Any of several quantities related to electricity: The quantity of unbalanced positive or negative ions in or on an object; measured in coulombs.
3. 3
   Any of several quantities related to electricity: A quantum number of some subatomic particles which determines their electromagnetic interactions; by convention the electron has an electric charge of −1, the proton +1 and quarks have fractional charge.