General Science

Cars & Driving

  • noun a unit of the quantity of electricity flowing in one hour through a conductor carrying a current of 1 ampere.
  • abbreviationa.h.


  • A unit of quantity of electricity equivalent to the charge accumulated by a steady flow of one ampere for one hour. An ampere-hour is equal to exactly 3600 coulombs, and is often utilized to state the capacity of a storage battery. It has various abbreviations, depending on the standard used, the most prevalent being Ah. Others include amp-hr, Ahr, or A-h.
  • abbreviationA-h
  • abbreviationAhr
  • abbreviationamp-hr


  • noun asshole (usually in the metaphorical rather than literal sense). A euphemistic abbreviation.