j

noun

1. 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

   Synonyms

   • joule, J, watt second

   Less specific

   • work unit, heat unit, energy unit

   Parts

   • erg

2. the 10th letter of the Roman alphabet

   Synonyms

   • J

   Less specific

   • letter, letter of the alphabet, alphabetic character

   Member of

   • Roman alphabet, Latin alphabet